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STEP 1: Your search may be broader than mine, but here is an example of a clean, precise search. I want to know how telenovelas depict sexual violence. I brainstormed other terms for it (OR will search all the terms at once) and then narrowed my search with more terms (AND):
STEP 2:
You may decide at this point to limit to journal articles or books.
STEP 3:
From your results, do any stand out? Why? Write down new keywords and controversies to explore.
Step 4:
Maybe your topic is different now? It's important to be flexible.