Perhaps you should try some spelling variations:
"digitalia poesia collections: con edicion." » "digitalia poetry collections: con edicion.", "digitalia poesia coleccion: con edicion.", "digitalia coin collections: con edicion.", "digitalia poesia collections: con adicion.", "digitalia poesia collections: canon edicion.", "digitalia poesia collections: con mediacion."
"digitalia book collecting: con radiacion." » "digitalia ebook collection: con radiacion.", "digitalia book collectors: con radiacion.", "digitalia ebook collecting: con radiacion.", "digitalia book collecting: con adicion.", "digitalia book collecting: con mediacion.", "digitalia book collecting: por radiacion."

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