Keep it simple. Describe what you need with as few terms as possible.
Generally, all the words you put in the query will be used. The goal of each word in a query is to focus it further.
Phrase search ("")
By putting double quotes around a set of words,
you are telling search engine to consider the exact words in that exact order without any change.
Terms you want to exclude (-)
Attaching a minus sign immediately before a word indicates that you do not want pages that contain this word to appear in your results.
The minus sign should appear immediately before the word and should be preceded with a space.
The OR operator
If you want to specifically allow either one of several words,
you can use the OR operator (note that you have to type 'OR' in ALL CAPS).
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