These sites will conduct multiple searches on the Internet. They they focus on searches for information on literature and film, but they can be used for any subject.
Since these sites conduct their searches in a variety of ways, you should read the guidelines for each of the search engines you choose.
For a preliminary search try Alta Vista on this page. Just type in the name, title, or subject of your search. When the results are loaded, you can read the instructions for refining the search to make it more precise. Click on the Help button at the top of the page.