What do you need to know in order to solve your specific problem?
Break down your project into smaller ideas and concepts or think of different ways to describe your project elements. Researchers may refer to elements of your project in different terms.
For example
- soda and pop
- additive manufacturing or 3D printing.
Who else might care about your problem?
Thinking of other researchers, organizations or groups that are interested in the problem you want to solve can inform where you search.
For example, if the Navy would be interested in your topic, try searching DTIC, the Defense Technical Information Center.