Perhaps you should try some spelling variations:
"series estudioss urbano." » "serie estudios urbano.", "seis estudios urbano.", "serie estudio urbano.", "series estudios urbano.", "series estudio urbano.", "serie estudioss urbano.", "seis estudioss urbano.", "tres estudioss urbano."
"series estudios urbanos." » "serie estudios urbanos.", "seis estudios urbanos.", "tres estudios urbanos."
"series estudios hispano." » "serie estudios hispano.", "seis estudios hispano.", "tres estudios hispano.", "series estudios hispana.", "series estudios hispanic."

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("series estudioss urbano.") or ("series estudios urbanos."))) or ("series estudios hispano."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("series estudioss urbano.") OR ("series estudios urbanos."))) OR ("series estudios hispano."))*.
• Removing quotes may allow a broader search: (((( series estudioss urbano. ) or ( series estudios urbanos. ))) or ( series estudios hispano. ))*.