The Post Condition field is a user populated text field used to describe a post condition of an item, such as a Test Script.
Within the contains/does not contains value for the "PostCondition" field, you can use Lucene query parser syntax - including * and ? wildcards.
See the Lucene Query Parser documentation for more information.
All entities where the PostCondition field does not contains the text "test"
PostCondition !~ test
Test Scripts where the postcondition field contains the text "test"
EntityType = TestScript AND PostCondition ~ test
~, !~, IS, IS NOT