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).
Qualified certificates for electronic signatures and electronic seals
COMMISSION IMPLEMENTING REGULATION (EU) …/... laying down rules for the application of Regulation (EU) No 910/2014 of the European Parliament and of the Council as regards reference standards for qualified certificates for electronic signatures and qualified certificates for electronic seals