Once you have completed your search, it is worthwhile to look at the results and reflect further:
You can evaluate your search with the PRESS checklist, a condensed version has been produced by the Karolinska Institutet. If you wish, you can consult the original checklist (see Table 1 in the linked publication).
In our example topic, hand hygiene skills of nursing students, one could consider whether it is necessary to include terms related to skills in the search, or whether it is sufficient to search using only the terms "nursing students" and "hand hygiene". If you search using search terms already related to nursing education or student nurses, do all search results already automatically relate to competencies, skills or competencies acquired during studies, without including terms related to competencies?
You can compare your search strategy with other search strategies on the same topic.
The appropriate number of search results is not straightforward, especially when doing a systematic review:
It is essential that you can justify your search results when reporting your search, so a well-designed and thought-out search plan will also help you in evaluating the result. Good luck with your search!