The Advanced Search Window offers multiple text boxes, Boolean operators , searchable fields and other search options that let you create a well-focused search. Select a field code from the drop-down list.
Field codes are database specific.
For more information on which searchable fields are available for a database, on the Database Selection Window, click the More Info link for the database. In the optional text boxes, enter additional search terms . Use the drop-down list to select the Boolean operator that connects your terms. And combines search terms so that each search result contains all of the terms. For example, travel and Europe finds articles that contain both travel and Europe .