Grouping
Cascade Server supports using parentheses to group clauses in order to form sub queries. This can be very useful if you want to control the boolean logic for a query.
To search for either "Hannon" or "Hill" and "website" use the query:
(Hannon OR Hill) AND website
This eliminates any confusion and makes sure that the website definitely exists and that either term Hannon or hill may exist.
Field Grouping
Cascade Server also supports using parentheses to group multiple clauses into a single field.
To search for a title that contains both the word "website" and the phrase "Hannon Hill" use the query:
title:(+website +"Hannon Hill")