Match All to find Web pages that include all of the words typed in a search. This search mode is similar to using the Boolean 'and' expression.
Match Any to find Web pages that include any of the words typed in a search. This search mode is similar to using the Boolean 'or' expression.
A Boolean search is used to describe exactly what you are searching for using the terms and and or along with parenthesis to group specific words together.
Examples of Boolean expressions are:
computing and research
computing or research
(computing or lab) and research
Punctuation is ignored by this search engine.