By using field labels in the search space of the Basic Search screen, you may combine searches in different indexes. Truncation Many databases allow you to type a word root followed by a symbol to search for plural or variant forms of the word. Use the question mark when searching for word roots with varied endings or different spellings. There is no limit to the number of pound signs you may use. Precision Searching Precision searching allows you to combine searches in different fields and to limit your search by various criteria.
Different databases allow different limiting criteria.
Most allow limiting by date, while some allow limiting by type of publication or special feature of the article. On the Precision Search screen, there are two spaces for entering search terms. If your search retrieves a high number of articles, or if the results seem too broad, you may combine your results with other search terms to get more precise results. Limiting is available from the Results screens of both Basic and Precision searches. Click to enter additional authors, title terms, subject terms, or dates.