Chemistry

Use “Quotation marks” for phrases/titles:

• "organic chemistry" "The disappearing spoon”

Use AND between different concepts (AND will narrow your search):

• chromium AND wastewater AND removal

Use OR between similar concepts/synonyms (OR will broaden your search):

• removal OR remediation

Use Asterisk(*) for truncation:

• chemi*= chemical, chemist, chemistry

Use Parentheses () to combine different and similar concepts:

• chromium AND wastewater AND (remediation OR removal)