Entering multiple words with no operator makes them all optional.
(Example: Press Release) will return anything matching Press and/or Release.
Use the + symbol to require multiple words.
(Example: Press +Release) will require that both words are found in the results.
Use the - symbol to denote that a word must NOT be present in the results.
(Example: Press - Release) will return results matching Press as long as Release is not also found.
A phrase that is enclosed within double quote (‘"’) is a literal search.
(Example: "Press Release") will return only results that have the phrase Press Release.