Choose a few precise words or short phrases that best          describe the information you want:              e.g. You are doing a research paper on the                      "Effect of anorexia on teenagers"              Keywords are:  anorexia, teenagers               Enter keywords into search boxes              Do not type in a whole sentence or use words such as 'in',                'and', 'between', 'of', 'the', 'with', 'to', etc.              Use synonyms if needed to express variations of keywords                (e.g. teenagers, adolescents -- see example in box below)        Combine keywords in search boxes using  AND  or  OR  (many journal          article indexes contain dropdown boxes allowing you to do this easily):	What is a Peer Reviewed or Scholarly Journal? articles in the journal are reviewed and evaluated by experts prior to publication. (more definitions)
AND    (narrows     search)  Results  contain  both terms e.g. anorexia    and (teenagers     or adolescents) OR    (broadens     search)  Results  contain  either term e.g. (teenagers     or adolescents)
SEARCH BY SUBJECT HEADINGS OR DESCRIPTORS:
If a Journal Article Index has a thesaurus,        subject guide or list of headings/concepts        use it to identify useful subject headings or        descriptors to use as search terms. What is a Thesaurus? list of subject headings used to organize a collection of documents & articles for easy retrieval. (more definitions)

       If you found some good articles searching by keywords, look at these same articles more closely
         to see which descriptors were used to categorize them. Then do a new search using those
         descriptors as search terms.

For the BEST RESULTS, search your topic both by KEYWORDS and SUBJECT HEADINGS