When you first visit the Advanced Search page, you are presented with several search fields. In each field, you can type the keywords you want to search for. Search operators are allowed.
Each field is accompanied by a drop-down that lets you specify the type of data (title, author, etc.) you are searching for. You can mix and match search types however you like.
Results must match every search field.
The "Add Search Field" button may be used to add additional search fields to the form. You may use as many search fields as you wish.