Perhaps you should try some spelling variations:
"digitalia book collection: con adicion." » "digitalia ebook collection: con adicion.", "digitalia book collecting: con adicion.", "digitalia book collectors: con adicion."
"digitalia book collection: faeton edicion." » "digitalia ebook collection: faeton edicion.", "digitalia book collecting: faeton edicion.", "digitalia book collectors: faeton edicion.", "digitalia book collection: canon edicion."

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: (("digitalia book collection: con adicion.") or ("digitalia book collection: faeton edicion."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("digitalia book collection: con adicion.") OR ("digitalia book collection: faeton edicion.")).
• Removing quotes may allow a broader search: (( digitalia book collection: con adicion. ) or ( digitalia book collection: faeton edicion. )).
• Adding a wildcard symbol may retrieve word variants: (("digitalia book collection: con adicion.") or ("digitalia book collection: faeton edicion."))*.