Boolean operators are connector words, such as AND, OR, and NOT, that are used to combine or exclude words in a search string for more focused results.
business AND ethics
ALL of the search terms.
hotels OR motels
|Results contain ANY of the search terms, but not necessarily all of them.|
java NOT coffee
|Excludes results containing
the second search term.
Truncation or wildcard symbols allow you to look for variations of words. They often broaden your search results.
Asterisk - For example, searching on sport* would bring up variations such as sport, sports, sporting, sporty, etc.
Parentheses - Another example is using parentheses with a keyword phrase such as "climate change" would search for the words climate and change together not separately.
Note: The truncation symbol varies by database. Consult the database’s “help” or “search tips” pages for details.