(Used and modified by permission from Patrick Ragain, Business and Government Information Librarian, University of Nevada, Reno. http://www.knowledgecenter.unr.edu/instruction/help/peer.html)
Using AND/OR/NOT (Boolean Search Operators)
Use AND to focus search and combine different aspects of your topic.
Example: obesity and epidemic and United States
Use OR to expand your search and find synonyms/related terms.
Example: obesity or overweight
Use NOT to exclude a word or phrase from your search
Example: food security not United States
Additional Search Tips
"Phrase search" - Use quotation marks" " to search for a particular phrase.Example: "school lunch program"
Truncation * - Use an asterisk to find variations of a word. Put an asterisk following the root of the word to find all variations of that word, including singular and plural.Example: environment* (finds environments, environmental, environmentalist, etc.)
(Grouping/Nesting Keywords) - Use parentheses ( ) as a way to group all your search terms together.Example: (obesity or overweight) and epidemic
Public Health/Community Health
Food/food systems/food security
Local food/local food production
Fats/oils/high fructose corn syrup (HFCS)
Cecil-Karb, Rebecca and Grogan-Kaylor, Andrew. Childhood body mass index in community context: neighborhood safety, television viewing, and growth trajectories of BMI.(Report). Health and Social Work 34.3, 169-178 (August 2009).
Jordan, Amy B. Overweight and obesity in America's children: causes, consequences, solutions. Los Angeles, CA: Sage Publications, 2008.