
Select just the most important words related to your topic.
Put the word AND between each new word or idea; this tells the database to look for resources with ALL your terms.
microplastic AND ocean
Use quotation marks ( " " ) around phrases:
"united nations" AND kenya
Use the asterisk (*) to truncate a word; this tells the database to look for all words that have the same base. In the example below, search results would include elect, elected, elects, election....
"united nations"AND kenya AND elect*
Use synonyms or related terms:
(microplastic OR microbeads) AND (ocean OR marine)