Search

These tips will help you get more specific results with your search.

• Search for a specific phrase.
  Example - Type infectious diseases to find all documents with the phrase infectious diseases.
  
  
• Use AND to look for two or more words.
  Example - Type fever AND immunization to find all documents containing both words.
  
  
• Use NEAR to search for words that appear close to each other.
  Example - Type nutrition NEAR babies to find all documents where nutrition appears within 50 words of babies. Search results will rank the documents according to how closely together the words appear.
  
  
• Use OR to search for similar words or synonyms.
  Example - Type children OR youth to find all documents with children, youth, but not necessarily both of them.
  
  
• Use AND NOT to exclude words from your search.
  Example - Type allergies AND NOT food to find documents with allergies but not food.
  
  
• Use double quotes to use AND, OR, NEAR, or NOT literally.
  Example - Type "vitamins or minerals" to find the exact phrase. Without the double quotes, your search would turn up documents with either word in them.
  
  
• Use a single asterisk (*) to look for words that begin with the same letters.
  Example - Type child* to find child, childhood, children, and so on.
  
  
• Use a double asterisk (**) to look for all forms of a word.
  Example - Type feed** to match feed, fed, feeding.