Many of us are accustomed to searching by typing entire questions into a search bar, in Google for example. However, this is not an effective search method in databases. For researching, it is important to use ONLY keywords, and actually, if you search with keywords on the open web you will find your results improve there too!
Chatting with a librarian (use the chat button at the top of this page) can be a great way to get useful keywords but if you want a couple more suggestions, try these-