Wildcards   The use of wildcards is not supported. However, unless Rank is selected all search terms are matched using partial (not whole word) matches. So, cat will match catharsis, bobcat and uncatchable.
 
Ranking Use of this option may produce unexpected results. It attempts to rank the search results so the most applicable appear at the top of the list. Here are the major effects of specifying this option:
   > Excludes partial words
   > Excludes words less than 4 characters in length
   > Excludes words that appear in more than half the rows
   > Hyphenated words are treated as two words