Date fields will not be searched. Use Fielded search or Expert Search for date searching. More operators are available in the Expert Search. Your expanded query shows up on the top of the results page. You could save favorite Expert Search queries in a text file, keeping them available for future use.
Similar words have characters inserted, deleted, or transposed.
The more instances of these words in a page, the higher it appears in the results list. NIH Enclose terms in double quotation marks if you want the search engine to take them literally . The words AND, OR, and NOT are always treated as Verity Query Language operators unless they are enclosed within double quotation marks. The search engine will find pages that contain at least one of your search terms. The pages may also contain more than one term.