To narrow down your search results:

• Use 'exact phrase' search for the most focused set of results. The search will return all documents with the words in that exact order
  
• Use 'all of the words' if you wish to find all publications that contain all of the keywords specified
  
• Use 'any of the words' to find publications that contain either one of the words anywhere in the publication - this is the widest type of search
  
• Add additional keywords to widen the search (any of the words must be selected)
  
• Search terms are not case-sensitive
• Use the keyword field to search the abstract, the contents of a document and the title of a document
• Use the author field to search one or more authors of the publication
• Enter the unique report or document number if you are trying to locate a specific item