This is the intial advanced search box you'll see in all EBSCOHost databases.
If you leave Select a field (optional) in place, the search terms you enter in the search boxes will find articles that contain your terms in the article summary (also known as an abstract), subject terms, and citation. You may change the pull-down menus next to the search boxes to search by AU Author, TI Title of the article, SU Subject Terms, So Journal Name, and more.
The area just above the three search boxes displays the database you are now searching - Academic Search Premier. By clicking on Choose Databases you can select a different EBSCO database to search. The terms you enter in the search boxes will be retained when you change databases.
LIMITING YOUR RESULTS
(See screen shot above)