Learn more how do identify key words in "Identify Keywords"
Use the box below to learn about how to create searches in library databases
Send or save articles to yourself so you have them for later
|Why you do it||
Link keywords related to a single concept
|Link different concepts||Exclude certain search terms|
|What it does||Linking with OR broadens a search (increases the number of results) by searching for any of the alternative keywords||Linking with AND narrows a search (reduces the number of results) by retrieving only those records that include all of your specified keywords||Using NOT narrows a search by excluding certain search terms|
|Example||chocolate OR cacao||chocolate AND health||chocolate NOT candy|
For phrase searching, place two or more words in "inverted commas" or "quote marks".
Example: “chocolate chip cookies”
In some databases, words may be searched separately if the quote marks are not used. In other databases, word order may be maintained without the need for quote marks.
|What it does||An asterisk applied to the root of a word (truncation) captures other endings to that root word.||A question mark applied in a word (wildcard) replaces one or more characters in the middle of a word.|
|Why you use it||Useful for retrieving singular, plural and other variations of a keyword.||Useful if word is spelled in different ways, but still has the same meaning.|
child* will give you:
wom?n will give you:
Many databases provide many different types of articles. You can narrow your search with limits. Adding a limit to a search will exclude certain material not relevant to your research question, and therefore reduce the number of results.
The use of limits should be justified by the focus of your research and any constraints.
Many databases use subject headings to organize content. These are generally selected from a controlled list by experienced people and describe what the article is about.
A comprehensive search strategy is often best achieved by using a combination of keywords and subject headings where possible.
In-depth knowledge of subject headings is not required for users to benefit from improved search performance using them in their searches.
Advantages of subject searching:
Note: Subject headings are often unique to a particular database, so you will need to look for appropriate subject headings in each database you intend to use.
Subject headings are not available for every topic, and it is best to only select them if they relate closely to your area of interest.