Perhaps you should try some spelling variations:
"digitalia ebooks collection: del escritor." » "digitalia book collecting: del escritor.", "digitalia ebooks collection: un escritor.", "digitalia books collection: del escritor."
"digitalia ebook collection: del escritor." » "digitalia ebook collection: un escritor.", "digitalia book collection: del escritor."

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: del escritor.") OR ("digitalia ebook collection: del escritor."))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"digitalia ebooks collection: del escritor.\") OR (\"digitalia ebook collection: del escritor.\"))".
• Removing quotes may allow a broader search: (( digitalia ebooks collection: del escritor. ) OR ( digitalia ebook collection: del escritor. )).
• Adding a wildcard symbol may retrieve word variants: (("digitalia ebooks collection: del escritor.") OR ("digitalia ebook collection: del escritor."))*.