What if there are two are more common or related words and you want to include both of them in your search? You’ll use parentheses – it works like an algebraic equation.
You enter your search into the database like so:
Example (blue or harvest) moon. You’ll get results that include blue and moon and harvest and moon.
(Soviet or Russia) “Cold War”
You’ll get results that include Soviet and “Cold War” AND Russia and “Cold War.”
If you have been doing searches like blue or harvest moon, you’ll get results back that feature only the word blue together with results that mix harvest and moon. No blue moon exactly, just blue….skies, bells, tooth, etc…
The parentheses make sure (those words go together.)