Perhaps you should try some spelling variations:
duo editorial » red editorial, xxi editorial
de editorial » del editorial, red editorial, y editorial
la editorial » alba editorial, red editorial, xxi editorial
y mediana » y medianas
y media » y medio, y medidas, y medios
de duo » de d.o, de duelo, de dubos

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (( y media, de duo editorial. ) OR ( y mediana, ou ((de editorial) OR (la editorial)). ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( y media, de duo editorial. ) or ( y mediana, ou ((de editorial) OR (la editorial)). ))~".
• Adding a wildcard symbol may retrieve word variants: (( y media, de duo editorial. ) or ( y mediana, ou ((de editorial) OR (la editorial)). ))*.