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Database Search Tips

Keyword & Subject Searching

Keywords are a good way to start your research because:

  • They are natural language used to describe your topic
  • They are flexible and can be combined into combinations
  • OneSearch and our Research Databases look for them in titles, abstracts, author names, and subject headings

But, keywords can lead to:

  • Too many or too few results
  • Irrelevant results

Subject Headings may be another beneficial way to search because:

  • They are controlled vocabulary, which means these are the precise words assigned to books, articles, and more by the database
  • Are more inclusive and will typically include more relevant results
  • Typically have subheadings, which can narrow your search results more
  • Can be thought of as social media hashtags - terms used to describe what a book or article is about

​But, to use subjects headings:

  • They are less flexible because you have to know the exact subject

How to Develop Keywords and Use Subject Headings

Developing Keywords to Use in Your Initial Searches

When searching using OneSearch or another database, you will only want to enter the key words or key concepts of your topic. You want to avoid typing full sentences. 

One way to develop keywords is to brainstorm the most important words or concepts that are associated with your research paper topic. Another way is to use the words or terminology you learned in your initial research. When you use terminology that authors are already using, you will have more relevant results. 

Because you may need to try multiple words in order to find the most relevant information, it's a great idea to think of all the synonyms or related terms for your main concepts.

For example, if I want to search for information about how will climate change affect the U.S. consumer price index, some terms you may consider searching are:

  • climate change
  • global warming
  • consumer price index
  • CPI
  • temperature increase
  • drought
  • goods and services
  • United States
  • U.S.
  • price data
  • market rate

Depending on your research topic, your list could be much longer or shorter. Remember, if you need help, Ask a Librarian

Video created by Monroe Community College

It is usually a good idea to start your research by brainstorming keywords associated with your topic. Once you have searched OneSearch, you can look for Subject Headings in a few places:

  • You will see a list of Subjects under the citation information. For example, in a search for spring AND allergies, I would find the subjects here:
    Subject headings of spring AND allergies shown in an article citation
  • You can also click the title to view the full record. The Subjects will be in a list form:
    Article record subject list
  • If you click on one of the Subjects, OneSearch will run the search again, looking only for that subject. 
  • You can always add search terms using Boolean phrases to be more precise
  • You can find a list of Subjects for the entire result set on the results page. Just click Filter by Subject. Then click show more. Read through the list and check the boxes next to the subjects you want to see and finally, click Update:
    Filter by subject

    Filter by subject menu