Implied AND
Important concept for internet search
The default Google search includes AND between terms. This requires that all terms in the search are included
drug AND abuse
Links to Google Search Handouts
The default Google search includes AND between terms. This means you do not have to add AND in between your terms. This requires that all terms in the search are included
drug AND abuse
OR will search for both terms, whether they appear on same site or not. Using OR can greatly increase your search results.
This is used often where you have synonyms, or related terms:
teenager OR adolescent OR youth AND smoking