Execute your search strategy, and update it as you go!
Try different terms in searches across platforms and use critical reading skills to evaluate whether a source is relevant to your research.
Save sources via permalink / stable link or through a citation management system like Zotero.
An advanced way to add keywords together in your search is to use "Boolean Operators" to connect them. Some common terms are AND / OR / NOT.
Imagine ordering pizza and how you'd describe the toppings you want in order to get a desired result - that is similar to how you can use Booleans in your search to establish relationships between terms.