Keywords may be separated by AND and/or OR statements for greater control of the search results.
For example, Queen AND Mother would generate a result set that contain both words. However, for Queen OR King, the result set returned would contain both or either words.
Exact matches can be searched for by enclosing keywords in double-quotes.
For example, "Queen Mother" would generate a result set which match the exact string.
Brackets can be used for further control on the result set.
For example, FDC and (1966 or 2006 or "england winners").