When searching, try synonyms, which are words or phrases that are similar in meaning. To search for multiple synonyms at once, put them inside parentheses and connect them with the word OR.
To focus the search a little more, just add the word AND along with a keyword:
You can use the same search techniques that you use to search library databases when searching Google or other Internet search engines.
Connect synonyms with the word OR and place them in parentheses.