Perhaps you should try some spelling variations:
"digitalia ebooks collection: con mediacion." » "digitalia ebook collection: con mediacion.", "digitalia book collecting: con mediacion.", "digitalia ebooks collection: co mediacion.", "digitalia ebooks collection: como mediacion.", "digitalia ebooks collection: con radiacion."
"digitalia book collection: lom edicion." » "digitalia ebook collection: lom edicion.", "digitalia book collecting: lom edicion.", "digitalia book collectors: lom edicion.", "digitalia book collection: lom ediciones.", "digitalia book collection: la edicion.", "digitalia book collection: con edicion."

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"digitalia book collection: lom edicion.\") OR (\"digitalia ebooks collection: con mediacion.\"))~".
• Removing quotes may allow a broader search: (( digitalia book collection: lom edicion. ) OR ( digitalia ebooks collection: con mediacion. ))~.
• Adding a wildcard symbol may retrieve word variants: (("digitalia book collection: lom edicion.") OR ("digitalia ebooks collection: con mediacion."))*.