There are a variety of ways you can limit your search in a database. These include:
Adding limiters to your search will narrow your search results. These options are usually available in the database's advanced search.
Also called stemming. Technique that broadens a search to include word variations such as spellings and endings.
Similar to truncation, wildcards substitute a symbol for one letter of a word.
For hearing impaired students:
I am going to try and use a variety of sources. I found some books in the library catalog searching for vegetarianism. They will be good for an overview and background information. I'm going to look at some of the library databases for articles. This will give me more current and specific information. I decided to start with Academic Search Premier and try searching vegetarianism and benefits.