Keywords may be separated by AND and/or OR statements for greater control of the search results.
For example, Fiacre AND pear would generate a result set that contain both words. However, for orange OR lemon, the result set returned would contain both or either words.
Exact matches can be searched by enclosing keywords in double-quotes.
For example, "green apple" would generate a result set which match the exact string.
Brackets can be used for further control on the result set.
For example, Pixabay and (lime or red or "green apple").
