A wildcard is a character that may be used in a search term to represent one or more other characters. The wildcard character used in AFS is an asterisk ("*").
Example: the query 'que*' will also trigger results for 'query', 'queries',etc. In this example, 'Query Engine' may also be returned as a result, even though it is not explicitly researched, as only 'query' is expansed.
To enable Wildcard Search Processing, set the QEng/SearchFrontEnd/QueryParsing/Wildcard/enableExplicit option to true.