I recommend the following research databases for finding academic articles:
Come up with keywords that describe your research question: What are some words or concepts related to the main ideas of my research topic?
Brainstorm synonyms of your keywords. Think boarder and narrower.
Combine your keywords with AND (Example: smart devices and risks)
Put phrases in quotes to find the exact phrase (Example: “internet of things” and security)
Keep it simple. Too many words usually means less results.
Gather search terms as you find sources. Notice what words authors are using to talk about your topic. Keep track of these words on paper or a Google doc.