Keywords may be separated by AND and/or OR statements for greater control of the search results.
For example, 1954 AND Olds would generate a result set that contain both words. However, for 1954 OR Olds, the result set returned would contain both or either words.
Exact matches can be searched for by enclosing keywords in double-quotes.
For example, "Cadillac clock" would generate a result set which match the exact string.
Brackets can be used for further control on the result set.
For example, Buick and (clock or paper or "greeting cards").