Whether searching in Google or a library database, it is useful to keep these strategies in mind.
Create a list of terms related to your topics. Often these terms may be labeled "tag" "subject" "subject heading" "topic" or "keyword"
For example: Fitness center; fitness club, gym
because these are similar terms, I might want to combine them with the boolean operator "or"
so my starting search strategy would look like this
"fitness center" or "fitness club" or gym. Here I am using the quotes to keep the words as an exact phrase.
Learn more about Boolean Operators by clicking on this link:https://library.suu.edu/LibraryResearch/Search-Strategies
Advanced Searching Library databases have an option for an advanced search. this allows you to combine different searches to see what type of results will be retrieved. Note there is a down arrow in the select field options. You will be able to select author, title of resource, name of periodical (source), etc.
So I could type fitness center or gym in the first line; then insurance on the second line by keeping the "and" the results will show where these terms overlapp.
If I find a useful resource, I can look at the subject terms associated with that article and note a new term example; PHYSICAL fitness center design & construction
Google has an advanced_SearchYou can use a similar strategy.
Be aware in library database there are news article, general interest magazines, trade/industry/professional magazines/journals, scholarly articles, and other resources. You will want to make sure you recognize the type of resource you are using. You can always google the title/name of the periodical or use the library's journals a-z listing to verify the type of resource.
This is also true searching on the internet. You can find reports, blogs, fact sheets, library guides, third grader papers, so again, make sure you are able to verify the type of resource it is.
I have provide a guide with evaluation techniques to help.