Name is a reference field for entities (Requirements, Scripts, Automated Test Scripts, Script Assignments, Automated Test Assignments, and Incidents).
Within the contains/does not contains value for the "Name" field, you can use Lucene query parser syntax - including * and ? wildcards.
See the Lucene Query Parser documentation for more information.
To find all requirements with a name that contains the word "Usability":
To find all scripts with a name that contains the word "import" or the word "export":