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 (1993) 283:
Proposal for a COUNCIL REGULATION (EEC) prohibiting the satisfying of claims with regard to contracts and transactions the
performance of which as affected by the United Nations Security Council Resolution 757 (1992) and related resolutions