Article title, author, company, geographical personal name, Pub title, subject or text are the searchable field options in advanced mode. Although all the fields in item 2.1 are searchable, the user must know the code and apply it on the search line. 2.4 Search screen layout Uncluttered. Good background color. Good use of color.
Buttons are in the same place on every screen.
That's an plus. With an option of deleting it from the search history list. 2.6 Limiting before initial search Available on screen as checkboxes. Additional after searching the user can select Limit and select an earlier search to apply a limit to, not just the last search executed. I like this because users can see how many articles they lose by limiting in the fashion.