diff --git a/app/assets/javascripts/app/controllers/tag.coffee b/app/assets/javascripts/app/controllers/tag.coffee
index 49039a90c..62496f3fe 100644
--- a/app/assets/javascripts/app/controllers/tag.coffee
+++ b/app/assets/javascripts/app/controllers/tag.coffee
@@ -95,7 +95,7 @@ class Table extends App.Controller
     e.preventDefault()
     e.stopPropagation()
     item = $(e.target).closest('tr').find('.js-name').text()
-    App.GlobalSearchWidget.search(item, 'tag')
+    App.GlobalSearchWidget.search(item, 'tags')
 
 class Edit extends App.ControllerModal
   buttonClose: true
diff --git a/app/assets/javascripts/app/controllers/widget/tag.coffee b/app/assets/javascripts/app/controllers/widget/tag.coffee
index 7b6cf5437..894816e03 100644
--- a/app/assets/javascripts/app/controllers/widget/tag.coffee
+++ b/app/assets/javascripts/app/controllers/widget/tag.coffee
@@ -115,4 +115,4 @@ class App.WidgetTag extends App.Controller
   searchTag: (e) ->
     e.preventDefault()
     item = $(e.target).text()
-    App.GlobalSearchWidget.search(item, 'tag')
+    App.GlobalSearchWidget.search(item, 'tags')
diff --git a/app/models/chat/session/search_index.rb b/app/models/chat/session/search_index.rb
index 7ed607b39..08f09d624 100644
--- a/app/models/chat/session/search_index.rb
+++ b/app/models/chat/session/search_index.rb
@@ -22,7 +22,7 @@ returns
       attributes = super
       return if !attributes
 
-      attributes[:tag] = tag_list
+      attributes[:tags] = tag_list
 
       messages = Chat::Message.where(chat_session_id: id)
       attributes['messages'] = []
diff --git a/app/models/ticket/search_index.rb b/app/models/ticket/search_index.rb
index a86822c27..a0dc15ed7 100644
--- a/app/models/ticket/search_index.rb
+++ b/app/models/ticket/search_index.rb
@@ -23,7 +23,7 @@ returns
     # add tags
     tags = tag_list
     if tags.present?
-      attributes[:tag] = tags
+      attributes[:tags] = tags
     end
 
     # list ignored file extentions
diff --git a/lib/search_index_backend.rb b/lib/search_index_backend.rb
index 74ec1d2a3..d97ebe783 100644
--- a/lib/search_index_backend.rb
+++ b/lib/search_index_backend.rb
@@ -502,6 +502,27 @@ get count of tickets and tickets which match on selector
             t[:term] = {}
             t[:term][key_tmp] = data['value']
           end
+          if data['operator'] == 'is' || data['operator'] == 'contains'
+            query_must.push t
+          elsif data['operator'] == 'is not' || data['operator'] == 'contains not'
+            query_must_not.push t
+          end
+        elsif data['operator'] == 'contains all' || data['operator'] == 'contains one' || data['operator'] == 'contains all not' || data['operator'] == 'contains one not'
+          values = data['value'].split(',').map(&:strip)
+          t[:query_string] = {}
+          if data['operator'] == 'contains all'
+            t[:query_string][:query] = "#{key_tmp}:\"#{values.join('" AND "')}\""
+            query_must.push t
+          elsif data['operator'] == 'contains one not'
+            t[:query_string][:query] = "#{key_tmp}:\"#{values.join('" OR "')}\""
+            query_must_not.push t
+          elsif data['operator'] == 'contains one'
+            t[:query_string][:query] = "#{key_tmp}:\"#{values.join('" OR "')}\""
+            query_must.push t
+          elsif data['operator'] == 'contains all not'
+            t[:query_string][:query] = "#{key_tmp}:\"#{values.join('" AND "')}\""
+            query_must_not.push t
+          end
 
         # within last/within next (relative)
         elsif data['operator'] == 'within last (relative)' || data['operator'] == 'within next (relative)'
@@ -516,6 +537,7 @@ get count of tickets and tickets which match on selector
           else
             t[:range][key_tmp][:lt] = "now+#{data['value']}#{range}"
           end
+          query_must.push t
 
         # before/after (relative)
         elsif data['operator'] == 'before (relative)' || data['operator'] == 'after (relative)'
@@ -530,6 +552,7 @@ get count of tickets and tickets which match on selector
           else
             t[:range][key_tmp][:gt] = "now+#{data['value']}#{range}"
           end
+          query_must.push t
 
         # before/after (absolute)
         elsif data['operator'] == 'before (absolute)' || data['operator'] == 'after (absolute)'
@@ -540,22 +563,6 @@ get count of tickets and tickets which match on selector
           else
             t[:range][key_tmp][:gt] = (data['value']).to_s
           end
-        else
-          raise "unknown operator '#{data['operator']}' for #{key}"
-        end
-        if data['operator'] == 'is'
-          query_must.push t
-        elsif data['operator'] == 'is not'
-          query_must_not.push t
-        elsif data['operator'] == 'contains'
-          query_must_not.push t
-        elsif data['operator'] == 'contains not'
-          query_must_not.push t
-        elsif data['operator'] == 'within last (relative)' || data['operator'] == 'within next (relative)'
-          query_must.push t
-        elsif data['operator'] == 'before (relative)' || data['operator'] == 'after (relative)'
-          query_must.push t
-        elsif data['operator'] == 'before (absolute)' || data['operator'] == 'after (absolute)'
           query_must.push t
         else
           raise "unknown operator '#{data['operator']}' for #{key}"
diff --git a/test/integration/elasticsearch_test.rb b/test/integration/elasticsearch_test.rb
index 5411ddab4..a6c5e3fbc 100644
--- a/test/integration/elasticsearch_test.rb
+++ b/test/integration/elasticsearch_test.rb
@@ -405,7 +405,7 @@ class ElasticsearchTest < ActiveSupport::TestCase
     # search for tags
     result = Ticket.search(
       current_user: @agent,
-      query: 'tag:someTagA',
+      query: 'tags:someTagA',
       limit: 15,
     )
     assert(result[0], 'record 1')
@@ -414,7 +414,7 @@ class ElasticsearchTest < ActiveSupport::TestCase
 
     result = Ticket.search(
       current_user: @agent,
-      query: 'tag:someTagB',
+      query: 'tags:someTagB',
       limit: 15,
     )
     assert(result[0], 'record 2')
@@ -437,7 +437,7 @@ class ElasticsearchTest < ActiveSupport::TestCase
     # search for tags
     result = Ticket.search(
       current_user: @agent,
-      query: 'tag:someTagA',
+      query: 'tags:someTagA',
       limit: 15,
     )
     assert(!result[0], 'record 1')
@@ -445,7 +445,7 @@ class ElasticsearchTest < ActiveSupport::TestCase
 
     result = Ticket.search(
       current_user: @agent,
-      query: 'tag:someTagB',
+      query: 'tags:someTagB',
       limit: 15,
     )
     assert(result[0], 'record 2')
@@ -454,7 +454,7 @@ class ElasticsearchTest < ActiveSupport::TestCase
 
     result = Ticket.search(
       current_user: @agent,
-      query: 'tag:someTagC',
+      query: 'tags:someTagC',
       limit: 15,
     )
     assert(result[0], 'record 1')
diff --git a/test/integration/report_test.rb b/test/integration/report_test.rb
index 4965f7990..6e1d03721 100644
--- a/test/integration/report_test.rb
+++ b/test/integration/report_test.rb
@@ -44,6 +44,8 @@ class ReportTest < ActiveSupport::TestCase
       updated_by_id: 1,
       created_by_id: 1,
     )
+    @ticket1.tag_add('aaa', 1)
+    @ticket1.tag_add('bbb', 1)
     @ticket1.update!(
       group: Group.lookup(name: 'Users'),
       updated_at: '2015-10-28 14:30:00 UTC',
@@ -75,6 +77,7 @@ class ReportTest < ActiveSupport::TestCase
       updated_by_id: 1,
       created_by_id: 1,
     )
+    @ticket2.tag_add('aaa', 1)
     @ticket2.update!(
       group_id: group2.id,
       updated_at: '2015-10-28 14:30:00 UTC',
@@ -162,6 +165,7 @@ class ReportTest < ActiveSupport::TestCase
       updated_by_id: 1,
       created_by_id: 1,
     )
+    @ticket5.tag_add('bbb', 1)
     @ticket5.update!(
       state: Ticket::State.lookup(name: 'open'),
       updated_at: '2015-10-28 14:30:00 UTC',
@@ -1161,6 +1165,194 @@ class ReportTest < ActiveSupport::TestCase
     assert_equal(@ticket9.id, result[:ticket_ids][0].to_i)
     assert_nil(result[:ticket_ids][1])
 
+    result = Report::TicketGenericTime.items(
+      range_start: '2015-01-01T00:00:00Z',
+      range_end:   '2015-12-31T23:59:59Z',
+      selector: {
+        'tags' => {
+          'operator' => 'contains all',
+          'value' => 'aaa, bbb'
+        }
+      }, # ticket selector to get only a collection of tickets
+      params:      { field: 'created_at' },
+    )
+
+    assert(result)
+    assert_equal(@ticket1.id, result[:ticket_ids][0].to_i)
+    assert_nil(result[:ticket_ids][1])
+
+    result = Report::TicketGenericTime.items(
+      range_start: '2015-01-01T00:00:00Z',
+      range_end:   '2015-12-31T23:59:59Z',
+      selector: {
+        'tags' => {
+          'operator' => 'contains all not',
+          'value' => 'aaa, bbb'
+        }
+      }, # ticket selector to get only a collection of tickets
+      params:      { field: 'created_at' },
+    )
+
+    assert(result)
+    assert_equal(@ticket7.id, result[:ticket_ids][0].to_i)
+    assert_equal(@ticket6.id, result[:ticket_ids][1].to_i)
+    assert_equal(@ticket5.id, result[:ticket_ids][2].to_i)
+    assert_equal(@ticket4.id, result[:ticket_ids][3].to_i)
+    assert_equal(@ticket3.id, result[:ticket_ids][4].to_i)
+    assert_equal(@ticket2.id, result[:ticket_ids][5].to_i)
+    assert_nil(result[:ticket_ids][6])
+
+    result = Report::TicketGenericTime.items(
+      range_start: '2015-01-01T00:00:00Z',
+      range_end:   '2015-12-31T23:59:59Z',
+      selector: {
+        'tags' => {
+          'operator' => 'contains all',
+          'value' => 'aaa'
+        }
+      }, # ticket selector to get only a collection of tickets
+      params:      { field: 'created_at' },
+    )
+
+    assert(result)
+
+    assert_equal(@ticket2.id, result[:ticket_ids][0].to_i)
+    assert_equal(@ticket1.id, result[:ticket_ids][1].to_i)
+    assert_nil(result[:ticket_ids][2])
+
+    result = Report::TicketGenericTime.items(
+      range_start: '2015-01-01T00:00:00Z',
+      range_end:   '2015-12-31T23:59:59Z',
+      selector: {
+        'tags' => {
+          'operator' => 'contains all not',
+          'value' => 'aaa'
+        }
+      }, # ticket selector to get only a collection of tickets
+      params:      { field: 'created_at' },
+    )
+
+    assert(result)
+    assert_equal(@ticket7.id, result[:ticket_ids][0].to_i)
+    assert_equal(@ticket6.id, result[:ticket_ids][1].to_i)
+    assert_equal(@ticket5.id, result[:ticket_ids][2].to_i)
+    assert_equal(@ticket4.id, result[:ticket_ids][3].to_i)
+    assert_equal(@ticket3.id, result[:ticket_ids][4].to_i)
+    assert_nil(result[:ticket_ids][5])
+
+    result = Report::TicketGenericTime.items(
+      range_start: '2015-01-01T00:00:00Z',
+      range_end:   '2015-12-31T23:59:59Z',
+      selector: {
+        'tags' => {
+          'operator' => 'contains one not',
+          'value' => 'aaa'
+        }
+      }, # ticket selector to get only a collection of tickets
+      params:      { field: 'created_at' },
+    )
+
+    assert(result)
+
+    assert_equal(@ticket7.id, result[:ticket_ids][0].to_i)
+    assert_equal(@ticket6.id, result[:ticket_ids][1].to_i)
+    assert_equal(@ticket5.id, result[:ticket_ids][2].to_i)
+    assert_equal(@ticket4.id, result[:ticket_ids][3].to_i)
+    assert_equal(@ticket3.id, result[:ticket_ids][4].to_i)
+    assert_nil(result[:ticket_ids][5])
+
+    result = Report::TicketGenericTime.items(
+      range_start: '2015-01-01T00:00:00Z',
+      range_end:   '2015-12-31T23:59:59Z',
+      selector: {
+        'tags' => {
+          'operator' => 'contains one not',
+          'value' => 'aaa, bbb'
+        }
+      }, # ticket selector to get only a collection of tickets
+      params:      { field: 'created_at' },
+    )
+
+    assert(result)
+    assert_equal(@ticket7.id, result[:ticket_ids][0].to_i)
+    assert_equal(@ticket6.id, result[:ticket_ids][1].to_i)
+    assert_equal(@ticket4.id, result[:ticket_ids][2].to_i)
+    assert_equal(@ticket3.id, result[:ticket_ids][3].to_i)
+    assert_nil(result[:ticket_ids][4])
+
+    result = Report::TicketGenericTime.items(
+      range_start: '2015-01-01T00:00:00Z',
+      range_end:   '2015-12-31T23:59:59Z',
+      selector: {
+        'tags' => {
+          'operator' => 'contains one',
+          'value' => 'aaa'
+        }
+      }, # ticket selector to get only a collection of tickets
+      params:      { field: 'created_at' },
+    )
+
+    assert(result)
+
+    assert_equal(@ticket2.id, result[:ticket_ids][0].to_i)
+    assert_equal(@ticket1.id, result[:ticket_ids][1].to_i)
+    assert_nil(result[:ticket_ids][2])
+
+    result = Report::TicketGenericTime.items(
+      range_start: '2015-01-01T00:00:00Z',
+      range_end:   '2015-12-31T23:59:59Z',
+      selector: {
+        'tags' => {
+          'operator' => 'contains one',
+          'value' => 'aaa, bbb'
+        }
+      }, # ticket selector to get only a collection of tickets
+      params:      { field: 'created_at' },
+    )
+
+    assert(result)
+    assert_equal(@ticket5.id, result[:ticket_ids][0].to_i)
+    assert_equal(@ticket2.id, result[:ticket_ids][1].to_i)
+    assert_equal(@ticket1.id, result[:ticket_ids][2].to_i)
+    assert_nil(result[:ticket_ids][3])
+
+    result = Report::TicketGenericTime.items(
+      range_start: '2015-01-01T00:00:00Z',
+      range_end:   '2015-12-31T23:59:59Z',
+      selector: {
+        'title' => {
+          'operator' => 'contains',
+          'value' => 'test'
+        }
+      }, # ticket selector to get only a collection of tickets
+      params:      { field: 'created_at' },
+    )
+
+    assert(result)
+    assert_equal(@ticket7.id, result[:ticket_ids][0].to_i)
+    assert_equal(@ticket6.id, result[:ticket_ids][1].to_i)
+    assert_equal(@ticket5.id, result[:ticket_ids][2].to_i)
+    assert_equal(@ticket4.id, result[:ticket_ids][3].to_i)
+    assert_equal(@ticket3.id, result[:ticket_ids][4].to_i)
+    assert_equal(@ticket2.id, result[:ticket_ids][5].to_i)
+    assert_equal(@ticket1.id, result[:ticket_ids][6].to_i)
+    assert_nil(result[:ticket_ids][7])
+
+    result = Report::TicketGenericTime.items(
+      range_start: '2015-01-01T00:00:00Z',
+      range_end:   '2015-12-31T23:59:59Z',
+      selector: {
+        'title' => {
+          'operator' => 'contains not',
+          'value' => 'test'
+        }
+      }, # ticket selector to get only a collection of tickets
+      params:      { field: 'created_at' },
+    )
+
+    assert(result)
+    assert_nil(result[:ticket_ids][0])
+
     # cleanup
     Rake::Task['searchindex:drop'].execute
   end
diff --git a/test/unit/search_index_backend_test.rb b/test/unit/search_index_backend_test.rb
index 102486349..3a6681a80 100644
--- a/test/unit/search_index_backend_test.rb
+++ b/test/unit/search_index_backend_test.rb
@@ -21,7 +21,7 @@ class SearchIndexBackendTest < ActiveSupport::TestCase
         (state:new OR state:open) OR priority:”3 normal”
         (state:new OR state:open) AND customer.lastname:smith
         state:(new OR open) AND title:(full text search) # state: new OR open & title: full OR text OR search
-        tag: “some tag”
+        tags: “some tag”
         owner.email: “bod@example.com” AND state: (new OR open OR pending*) # show all open tickets of a certain agent
         state:closed AND _missing_:tag # all closed objects without tags
         article_count: [1 TO 5] # tickets with 1 to 5 articles