It's likely that you will have to use synonyms to ensure that you have thoroughly explored the research on your question. At this stage, you will brainstorm synonyms, but the databases also give you good suggestions for alternate terms to use.
Oftentimes, we employ commonly used words in our searches. Below is a chart representing just a few common medical terms and their corresponding "technical" terms. Look for those technical terms when searching databases & employ them in your Google searches too!
|Natural Language||Database Language|
|Heart attack||Myocardial infarction|
|ACL||Anterior Cruciate Ligament|