Keywords may be separated by AND and/or OR statements for greater control of the search results.
For example, Badminton AND nano would generate a result set that contain both words. However, for racket OR shoe, the result set returned would contain both or either words.
Exact matches can be searched for by enclosing keywords in double-quotes.
For example, "nano technology" would generate a result set which match the exact string.
Brackets can be used for further control on the result set.
For example, badminton and (shoe or shuttlecock or "racket grip").
