The objective field is a user populated text field used to describe the objective of the test script.
Within the contains/does not contains value for the "Objective" field, you can use Lucene query parser syntax - including * and ? wildcards.
See the Lucene Query Parser documentation for more information.
All entities where the objective field does not contains the text "test" (currently only scripts support the "Objective" field):
Objective !~ test
Explicity query for all Test Scripts where the Objective field contains the text "test":
EntityType = TestScript AND Objective ~ test
~, !~, IS, IS NOT