Below is a list of subject databases that might include scholarship on topics regarding conflict resolution. For a complete list of databases, click here.
Why would you want to do a subject search? Well, let's say you were interested in finding all the books in the library about cats. You might find books about cats under "Cats," "Kittens," Felines," or a variety of other keywords. When you search by subject, then all of the synonyms are accounted for, so "Cats" as a subject would include all the books about "Kittens" and "Felines" as well. Subjects can also serve to narrow your search. A keyword search of "cats" would retrieve all the books that just have a few pages about cats, whereas a search of the subject "Cats" would retrieve books where the main focus were those cute, furry creatures! This website from MIT might do a better job of explaining it than I did!