If you can't find what you are looking for there, you can search other search engines using the same words. If you can learn how to use this well, you won't have to know about any particular sites, just how to look 'em up. They must be listed together in the document to be a match. This must be used after at least three letters and will match 0 to 5 lowercase letters. Typing in lower case will get you both lower and upper case.
Upper case matches upper case only.
This can be a big help if used properly. Don't bother using the columns in which you can check off various terms. This can often lead to a search made nearly unrecognizable. Scan the list of terms for ones you can use in further modifying your search. In advanced searching, you can use more complex Boolean searching than in the simple searches, Advanced searches take more time to type in , but they often save time in the number of matches you have to look through.