After a preliminary search for materials, keep in mind that you have to be sure that you have explored your topic thoroughly, which often means revising your search strategies in order to be able to write competently about your topic.
It is likely that you will have to perform several advanced searches, as well as search in a few subject databases, in order to find the right sources to fulfill your assignment.
Limiters & Filters can help you to narrow down your search results so that they are focused on your research topic.
*How to construct proximity searches varies from database to database. Check the database's help section to learn how to properly use it.
*Truncation and wild cards work differently in different databases. Check the help section of the database to learn what symbol to use and how to properly use it.