Research Guides
AND | Retrieves items that contain both terms. Good for combining topics to narrow a search. | coronavirus AND Korea |
OR | Retrieves items that contain at least one of the terms. Good for expanding a search by looking for similar terms. | COVID OR coronavirus |
* (Asterisk) |
Retrieves word variants, such as Korea, Korean, Koreans. Looks for any word that begins with the letters before the asterisk. | Korea* |
" " (Quotation marks) |
Retrieves the exact phrase contained by the quotation marks. (Searching for "economic impacts" will not retrieve references with only the phrase "economic impact.") | "economic impacts" |
( ) Parentheses |
Tells search system how to combine terms. Article needs to mention Korea and EITHER coronavirus or COVID. |
Korea* AND (coronavirus OR COVID) |
Example: PAIS Index