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Operator Description Example
( ) Use Parentheses to override operator precedence. The expression inside the parentheses is executed first. ((Open access AND Trends) AND Global) NOT Policy
" " Search for Articles that exactly match the search keyword in " " "Global Open access Trends"
AND
(Capital letter)
Finds records containing all terms separated by the operator Open access AND Trends
OR
(Capital letter)
Finds records containing any of the terms separated by the operator Open access OR Trends
NOT
(Capital letter)
Excludes records containing certain words from your search (Open access AND Trends) NOT Policy