If you're not sure whether you're using the best terminology for your topic, try doing a quick search with a keyword and check in the detailed records of your most promising results to see which subject terms (or "subject headings") are used in their description. Once you know how to find the preferred controlled vocabulary terms for your topic, you can write more effective search queries.
The detailed record for each item in a search gives a wealth of information about the item's content. You can often see how relevant a source is without having to read through it during your search process. Instead, sign in to your library account and pin it to save for later. Or, use your preferred citation manager (Zotero, Mendeley) so you can access the item when you're ready to read it.
At the very bottom of the detailed record for some items, there may be buttons linking out to results lists that include items cited by an article as well as items that have cited the article since its publication. These are both great ways to find other scholars taking part in the same conversation about a given topic. If you don't see this function for an article, try looking it up in Google Scholar to find the citation trail.