Query language

      Keywords should be written with commas or spaces between them. The case is not important.
      The search type "AND" means that RiFlex will find files which contain ALL keywords. The search type "OR" means that script will find all files which contain at least one keyword. In any search regime mark "+" before keyword means that this keyword should be in returned pages. In order to exclude word from results type "-" before keyword, for example "+perl -CGI".