Basic Difference between Search Types Simple searches are good for casting the broadest possible net for a word or term. On common words, this may find a very large number of items. You may then wish to modify your search by doing an advanced search. Boolean searches allow you to combine up to four search terms. You also have the option to look for the terms in the Same Page, Same Chapter, or Same Work.
Proximity searches look for the co-occurrence of search terms.
This allows you to specify the spatial relationship between words you are looking for. You can look for words following each other or near each other. A simple search is quick and easy. Boolean Searches Boolean searching allows one to combine up to four search terms. For example, submitting a query for iron will result in a full-text search for all works in the database in which the term occurs.