For full-text case law searches, have you considered all the ways your topic might be expressed by different judges at different times? Look again at your keywords to make sure you have all the relevant synonyms.
For full-text case law searches, if you have a broad topic or are retrieving too many cases, consider what subset of cases you need to search. Can you narrow it by jurisdiction? By timeframe? By court level?
Words and Phrases
Are there any words or phrases that are ambiguous or may have a specialized legal meaning?