Skip to main content
Universiteitsbibliotheek – LibGuides

Search strategy: Formulating the search question

Get going

Studying the literature

A well-formulated search question leads to the most relevant material. So find out more about your subject before you start and determine what you want to know. Ask yourself if you need some basic knowledge first or if you want to delve deeply into the subject straight away.

If you want to familiarize yourself with the subject you could consult standard books, handbooks and encyclopedias in your discipline, or visit Wikipedia. As a result, you will learn more about what knowledge is available (for instance concepts, definitions and theories). You could read books and articles by authors who are known to be experts in the field. Or ask an expert for tips and advice.


A well-formulated search question

A good search question consists of several well-defined and (where possible) measurable elements. The better you know how to define your subject the more precise your question will be. If you can't really tell what your subject is, your search results will be of no or less relevance.


  • “Is the weather beautiful?” (too vague)
  • "On a yearly basis, is it always beautiful weather in the period between April and September?' (less vague already)

Measurable and better is:

  • "How many summery days per year did occur in the Netherlands between 1900 and 2000?"( A summery day is a day with a maximum temperature of 25 degrees Celsius or higher).
  • "What month had, on average,  the least number of hours of sunshine in the period between 1900 and 2000?"


Generating search terms

 Thinking up the right search terms is one of the major parts of your search strategy.

Go looking for corresponding terms for each part of your search question. Don't forget:

  • ​synonyms (house/dwelling)
  • broader terms (university / higher education)
  • narrower terms (children/ toddlers)
  • related terms (training / coaching)
  • antonyms (terms with opposite meanings, such as parent/child or sick/healthy
  • persons and organisations of importance to your subject
  • terms indicating space and time (for instance eras,centuries, place names, countries)
  • avoid bias in your search terms, it might colour the outcome of your search 

And also think of the different forms:

  • singular/plural
  • verb conjugations
  • nouns/adjectives
  • different spelling (labor / labour)
  • abbreviations
  • translations into languages which are relevant to your subject and discipline

Correct your search terms along the way. If you do so from the very start, you will soon see which (new) terms produce the right results, and which terms don't. Repeat this method als long as it takes.

You don't have to reinvent the wheel. Use resources:

  •  words from an exploratory search from, for instance, Wikipedia 
  •  words from the search results of search engines
  • words from earlier found sources, for instance keywords given by the author (author keywords)
  • dictionaries
  • thesauri (overviews of selected words or concepts and their mutual relations within a particular field of interest or discipline, often included in large search engines)

What search engines will I use?

Search profile: record your choices

In the case of searches for a larger paper or thesis it is recommended to create a search profile as part of your search strategy. In other words; write down what you are going to do/have done and the reason behind your choices.

Your search profile may contain:

  • your search question
  •  the main elements/variables from that question
  •  limitations, if any (time, place, year of publication, language)
  • the kind of information you are looking for and the corresponding forms of publication (articles, social media)
  •  the search terms and alternative search terms for each of your main elements and filters
  • the search methods (may be more than one) you are going to choose or have already chosen
  •  the search engines you are going to choose or have already chosen (based on content, publication forms wanted and search methods)

During your search you may obviously change, add or cross off  things when they are done or if (in the case of search terms) they turned out to be irrelevant.