In the Category settings window, you can configure the conditions of data search across SharePoint sites using keywords.
In this entry field, you can specify keywords and expressions that the application should use to find matches on SharePoint sites. Keywords should be put into quotes. The application ignores words or phrases that have not been put into quotes.
Words and phrases that have been specified as keywords and put into quotes can be separated with whitespaces and other symbols (for example, "#", "%", "+", "@", "&", and punctuation symbols). Keywords can be combined into expressions by using such operators as AND, OR, NEAR(n), and ONEAR(n).