Using Parentheses to Specify the Order of Operators
You can enclose search terms and their operators in parentheses to specify the
order that they are interpreted.
Information within parentheses is read first, then information outside parentheses is read next.
If there are nested parentheses, the search engine processes the innermost parenthetical expression first.
The following example is
interpreted to mean: Find documents that contain vomit or diarrhoea as well as blood.
