Perhaps you should try some spelling variations:
"digitalia ebooks collection: ediciones de." » "digitalia ebook collection: ediciones de.", "digitalia book collecting: ediciones de.", "digitalia ebooks collection: edicion de.", "digitalia ebooks collection: condiciones de."
"digitalia book collection: ediciones area." » "digitalia ebook collection: ediciones area.", "digitalia book collecting: ediciones area.", "digitalia book collectors: ediciones area.", "digitalia book collection: ediciones carena.", "digitalia book collection: ediciones alfar.", "digitalia book collection: ediciones siruela."

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