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MD Research Project Guide: Search strategies and tips

A guide for the School of Rural Medicine's MD research project

Common search tips

There are a number of techniques you can use while searching journal databases and other electronic information resources to get better and more relevant results. If you're looking in a specific database there is a lot more detail and tips under the relevant tabs. Here are some broadly applied search tips.

Basic and advanced search

Basic search usually involves one search box, with a few options about searching a specific collection or field. This is useful for quick, general searching. When you have multiple keywords or complex search queries, using Advanced search is where you should head. It will allow you to tailor your search using all the powers of a good database, including built-in search operators and options for field searching and limiters.

Most databases will have a link to Advanced Search next to their Basic search option. Advanced Search in Google Scholar is accessible from the menu.

Search operators

Use these in journal databases with your keywords to refine your searches and specify exactly what you want to find.  Some of the below won't work as well in Google Scholar and there will be some variation in the way they are used in different databases, so do check our Searching in the Database Platforms guide to be sure.

Search Operator Example
Use AND to retrieve results that contain both of your search terms. doctor* AND treat*
Use OR to retrieve results that contain any or all of your search terms. "cardiac arrest" OR "heart attack"
Using NOT to exclude irrelevant results. (Use caution with this operator - you don't want to throw out potentially useful results) "cardiac arrest" NOT prehospital
Group terms or equivalent keywords with parentheses to create complex searches. (cardiac arrest OR heart attack) AND treat*
Use quotation marks to search for a phrase "prehospital care"
Search for terms with different word endings using an asterisk. treat* = treats, treatment, treating
A question mark can be used to replace a single letter within a word. analy?e = analyse, analyze
A proximity symbol can be used to force a search where one keyword appears  within a certain range of another keyword cardiac arrest N3 treat* (note: proximity operators may vary between databases, check database help pages for more information)

Field searching and limiters

Most databases will allow you to specify which field you want to search. Common fields include author, title, dates, and subject headings/topic, and these are usually available in both basic and advanced search. 

Once you've searched, you can also limit your results by some of these fields. This is extremely useful if you want all of your articles to have been published within a certain date range, or for them all to be peer-reviewed or in English. Look for these in the menus beside your search results. 

From research question to search strategy

Keeping a record of your search activity

Good search practice could involve keeping a search diary or document detailing your search activities (Phelps et. al. 2007, pp. 128-149), so that you can keep track of effective search terms, or to help others to reproduce your steps and get the same results. 

This record could be a document, table or spreadsheet with:

  • The names of the sources you search and which provider you accessed them through - eg Medline (Ovid), Web of Science (Thomson Reuters). You should also include any other literature sources you used.
  • The search strategies that you applied when searching different sources (eg Medline, Web of Science) can be added as an appendix to your document. This provides additional detail on:
    • how you searched (keyword and/or subject headings)
    • which search terms you used (which words and phrases)
    • any search techniques you employed (truncation, adjacency, etc)
    • how you combined your search terms (AND/OR). Check out the Database Help guide for more tips on Boolean Searching.
  • The number of search results from each source and each strategy used. This can be the evidence you need to prove a gap in the literature, and confirms the importance of your research question.
Tip: you will be doing a number of searches as your initial search evolves. As your thesis, discussions and argument develops you will search for further evidence and support from the literature. Each search should be included in your search record.

A search planner may help you to organise you thoughts prior to conducting your search. If you have any problems with organising your thoughts prior, during and after searching please contact your Library Faculty Team  for individual help.

Get better search results

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