Perhaps you should try some spelling variations:
"digitalia ebooks collection: ruiz editor." » "digitalia ebook collection: ruiz editor.", "digitalia book collecting: ruiz editor.", "digitalia ebooks collection: ruiz aitor."
"digitalia ebooks collection: ruiz anton." » "digitalia ebook collection: ruiz anton.", "digitalia book collecting: ruiz anton.", "digitalia ebooks collection: ruiz antonia.", "digitalia ebooks collection: ruiz antonio."

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: ruiz editor.") OR ("digitalia ebooks collection: ruiz anton."))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"digitalia ebooks collection: ruiz editor.\") OR (\"digitalia ebooks collection: ruiz anton.\"))*".
• Removing quotes may allow a broader search: (( digitalia ebooks collection: ruiz editor. ) OR ( digitalia ebooks collection: ruiz anton. ))*.