Article databases, online library catalogs, and many popular search engines share several general searching techniques. Once you master these common searching techniques, you will save yourself time and find more relevant results.
Keep in mind that not all databases and search engines interpret searches in the same way. It's a good habit to review the database Help pages before you search so you know what searching techniques to use.
The search terms or keywords you use to search are what determine the results you get. Here's a good exercise to help you generate keywords:
1. Express your topic in a topic sentence: “What is the effect of television violence on children?”
2. Generate keyword search terms by identifying the main ideas or concepts within that topic sentence: “What is the effect of television violence on children?” = Effect, Television, Violence, or Television violence and Children
3. Expand your search terms by brainstorming related terms or synonyms that describe your main ideas:
You can create complex search strategies by combining keywords using the linking words AND, OR and NOT. For example, if your search terms are mathematics AND curriculum:
If you are searching for a phrase, keep in mind that not all databases will search multiple words automatically as a phrase. Check the database Help pages to be sure how that database handles multiple works.
Using truncation symbols allows you to expand your results by including various endings for a search term. Most databases will designate a non-alphabetical symbol -- like ! , *, or ? -- as a truncation symbol; check the database Help screens to find out the specific symbol. Using the truncation symbol at the end of the root word will bring back results that include any ending of that root word. For example, if the truncation symbol was a ? , then:
Similar to truncation, wildcard symbols are used to substitute a designated symbol for one letter of a word. Check the database Help screens to find out the specific symbol. Wildcards are useful if a word is spelled in different ways, but still has the same meaning. For example: