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 (2000) 160:
Proposal for a Council Decision on the accession of the European Community to United Nations Economic Commission for Europe
Regulation No 106 concerning the approval of pneumatic tyres for agricultural vehicles and their trailers