Perhaps you should try some spelling variations:
"digitalia ebooks collection: lom ediciones." » "digitalia ebook collection: lom ediciones.", "digitalia book collecting: lom ediciones."
"digitalia ebooks collection: la edicion." » "digitalia ebook collection: la edicion.", "digitalia book collecting: la edicion.", "digitalia ebooks collection: la educacion."

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