Use quotation marks to search for an "exact phrase". Append an asterisk (*) to a search term to find variations of it (transp*, 32019R*). Use a question mark (?) instead of a single character in your search term to find variations of it (ca?e finds case, cane, care).
COM (1983) 422:
PROPOSAL FOR A COUNCIL DIRECTIVE ON LIMIT VALUES AND QUALITY OBJECTIVES FOR DISCHARGES OF HEXACHLOROCYCLOHEXANE, AND IN
PARTICULAR LINDANE