From Shepherd WorldCat Discovery interface, you can find books, ebooks, course reserve materials, articles and other materials. If we don't own it, you can request the item through interlibrary loan.
Google Scholar probably has more scholarly articles than other types of information, but keep in mind that not all of your results will be from peer-reviewed journals. (If you're not sure what peer-reviewed journals are, check out our guide on publication types.
The Search Strategy Builder is a tool designed to teach you how to create a search string using Boolean logic. While it is not a database and is not designed to input a search, you should be able to cut and paste the results into the standard database search boxes.