Perhaps you should try some spelling variations:
"digitalia ebooks collection: con edicion." » "digitalia ebook collection: con edicion.", "digitalia book collecting: con edicion.", "digitalia ebooks collection: con adicion.", "digitalia ebooks collection: con mediacion.", "digitalia ebooks collection: en edicion."
"digitalia ebooks collection: canon edicion." » "digitalia ebook collection: canon edicion.", "digitalia book collecting: canon edicion.", "digitalia ebooks collection: carrion edicion.", "digitalia ebooks collection: faeton edicion.", "digitalia ebooks collection: ocana 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 ebooks collection: con edicion.") OR ("digitalia ebooks collection: canon edicion."))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"digitalia ebooks collection: con edicion.\") OR (\"digitalia ebooks collection: canon edicion.\"))".
• Removing quotes may allow a broader search: (( digitalia ebooks collection: con edicion. ) OR ( digitalia ebooks collection: canon edicion. )).
• Adding a wildcard symbol may retrieve word variants: (("digitalia ebooks collection: con edicion.") OR ("digitalia ebooks collection: canon edicion."))*.