Use “Quotation marks” for phrases/titles:
- "Newtonian mechanics" "law of thermodynamics”
Use AND between different concepts (AND will narrow your search):
Use OR between similar concepts/synonyms (OR will broaden your search):
- exoplanet OR "extrasolar planet"
Use Asterisk(*) for truncation:
- gravit*= gravity, gravitation, gravitational,
Use Parentheses () to combine different and similar concepts:
- detection AND atmosphere AND (exoplanet OR "extrasolar planet")