Keywords may be separated by AND and/or OR statements for greater control of the search results. For example, rose AND bouquet would generate a result set that contain both words. However, for house OR village, the result set returned would contain both or either words.
Exact matches can be searched for by enclosing keywords in double-quotes. For example, "mona lisa" would generate a result set which match the exact string.
Brackets can be used for further control on the result set. For example, australian and (roberts or mccubbin or "famous artwork").