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 (2013) 58:
Proposition de DIRECTIVE DU CONSEIL portant adaptation de certaines directives dans le domaine de la libre circulation des
marchandises, du fait de l'adhésion de la Croatie