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 (1991) 433 - 3:
Proposal for a COUNCIL REGULATION ( EEC ) fixing the Community producer price for tuna intended for the industrial manufacture
of products falling within CN code 1604 for the 1992 fishing year