Search Library of Congress Authorities to identify subject terms for more effective searching in library catalogs and databases.
You can also do a keyword search in the Search Our Collections to find a book on your topic and then click on the subject headings that index that book to find similar titles.
Google Scholar can be a great place to search full-text papers, articles, and dissertations. Try the Search Tips and read about Scholar's coverage.
To take advantage of Google search, visit Inside Search Help.