Perhaps you should try some spelling variations:
"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."
"digitales y collections: con adicion." » "digitales _ collections: con adicion.", "digitales _ collection: con adicion.", "digitales _ colections: con adicion.", "digitales en collections: con adicion.", "digitales de collections: con adicion."

Try widening your search to All Fields.

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("digitales y collections: con adicion.") or ("digitalia book collection: lom edicion."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("digitales y collections: con adicion.") OR ("digitalia book collection: lom edicion.")).
• Removing quotes may allow a broader search: (( digitales y collections: con adicion. ) or ( digitalia book collection: lom edicion. )).
• Adding a wildcard symbol may retrieve word variants: (("digitales y collections: con adicion.") or ("digitalia book collection: lom edicion."))*.