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Research Guides

Search Tips for Searching Library Databases

Boolean Operators (Connectors)

AND

 

  • Finds sources containing two or more ideas.
  • The database will only retrieve items containing both words.
  • AND narrows your search.
  • You can use AND many times in one search.
  • Example: "public relations" AND "great britain"

OR

 

  • Use OR when searching for synonyms.
  • OR broadens your search to include synonyms and related words.
  • OR tells the database that the words can be used interchangeably, so it will retrieve items containing either word.
  • You can use OR many times in one search.
  • Example: united kingdom OR britain

AND and OR

Make a complex search using both AND and OR by using parentheses around OR synonyms.

  • Example: (united kingdom OR britain) AND "public relations"
  • Example: (united kingdom OR britain) AND ("public relations" OR marketing)
Truncation

*

 

  • Common symbol used to replace any number of letters at the ends of words.
  • Helps find singulars, plurals, and variant endings of words.
  • Differs from database to database. Check the online help to identify the truncation symbol used.
  • Example: market* finds market, markets, marketing

     

  • Databases that use * include the UW Libraries Catalog, EBSCO databases, and ProQuest databases.
  • Lexis Nexis uses !
Limits

limits vary

Most databases let you limit search results. Some limits include language, date of publication, publication type, etc.

Phrases

""

 

  • Enclose phrases in quotation marks when searching the Web or most databases.
  • Phrase searching in databases varies. Check the online help for additional information.
  • Example: "public relations"
  • Example: "united kingdom"