
Taken from UCMerced Library Psychology 120 guide. https://libguides.ucmerced.edu/c.php?g=15926&p=87312
A. Boolean Operators: define the relationship between search terms. When you use a Boolean search, keywords are combined by the operators AND, OR, and NOT. You can use these operators in the database search interface to create a very broad or very narrow search.
B. Quotation marks: use quotation marks to search for a phrase
C. Truncation: Use a symbol, the asterisk * is the most common, to look for variant endings of a word
D. Combine search strategies: Combine search strategies for more efficient searching
After your search, the results page will show how many hits you received from the initial search. As you can see the original search for "South America" AND agriculture returned over 40,000 results.

With over 40,000 hits you will want to narrow the results. An easy way to do this is with the Filters under the search box at the top of the page. Click the box next to the filter you want to use and the database will automatically update.


Use the Subject: Thesaurus Term to narrow even further. Click on the Show More link to expand list with more options.

Did you narrow your results too much? You can always go back by clicking an X next to a filter to undo it by clicking on the filters option found underneath the search box. *Note: all filters will be displayed underneath the search box (refer to first screenshot below)*


A keyword search looks for words anywhere in the book or articles record. Keyword searches are a good substitute for a subject search when you do not know the standard subject heading. Refer to Keyword Chart at the left.
Most of the library services databases are provided by EBSCOhost. You will generally see an opening page similar to the photo below. Our most popular database is Academic Search Complete, it has over 8,500 full text journals in many areas of academic study.

This short video below demonstrates a basic search in Academic Search Complete. (Even though the User Interface has changed, the components of doing a basic search in the database has not.