Beyond the operators, here are some invaluable recruiting boolean search tips and tricks:

Start Broad, Then Narrow: Begin with a wider search and progressively add exclusions or more specific terms.
Use Synonyms and Related Terms: Always think of alternative ways candidates might describe their experience (e.g., "UI/UX" OR "User Interface/User Experience").
Test Your Strings: Don't just assume your string works. Test it on your target platform to see the results.
Keep a Boolean Search Cheat Sheet for Recruiters: Maintain a document with your most effective strings and common operators. This saves time and ensures consistency.
Iterate and Refine: If a search isn't yielding results, modify it. Experiment with different combinations of keywords and operators.
Look for 'Code-to-Concept' Keywords: Instead of just 'Python', try 'Python for data analysis' or 'Python machine learning' to find more relevant profiles.