Perhaps you should try some spelling variations:
xxi editorial » red editorial
del editorial » el editorial, de editorial, delos editorial
de editores » dos editores, de auditores, b editores
y media » y medio, y mediana, y medidas
du de » de de, ou de, tu de
medianas, » mediana,, mediante,, medicas,

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (( y medianas, tu ((xxi editorial) or (del editorial)). ) or ( y media, du de editores. ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( y medianas, tu ((xxi editorial) OR (del editorial)). ) OR ( y media, du de editores. )).
• Adding a wildcard symbol may retrieve word variants: (( y medianas, tu ((xxi editorial) or (del editorial)). ) or ( y media, du de editores. ))*.