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 (1978) 363:
Proposal for a COUNCIL DIRECTIVE on the methods of measurement and frequencies of sampling and analysis of the parameters
of the quality required of surface water intended for the abstraction of drinking water in the Member States (submitted to
the Council by the Commission)