Once you have completed your search you may find that you have retrieved too many or too few results. Consider refining your search strategy. Useful techniques include:
Use search terms and descriptors used by the database
Combine search terms using boolean operators
Apply limits to the current search results
Search in the thesaurus for broader subject terms or look for related terms
Review limits applied to search
Use wildcards where relevant
use truncation to identify variant spellings and word forms
Use boolean operator OR to broaden your search
