When searching for books, there are a couple good strategies to start with:
1. If you already have a relevant book or article in hand, use its bibliography to help find other sources;
2. Use the "More like this" link to find other books within your subject area.
3. Think of synonyms or variations on spelling and try and OR search:
For some literary research it's important to track a particular author whose name may have varied over the course of his/her lifetime or publication history. In these cases, pay attention to cross-references in the catalog when you do an Author or Subject search for a name. Keep all name variants in mind when you search other catalogs and databases to ensure that you are finding all relevant resources.