Perhaps you should try some spelling variations:
"series estudioss urbano." » "series estudios urbano.", "seis estudios urbano.", "serie estudio urbano.", "series estudios urbanos.", "series estudio urbano."
"seis espacio urbano." » "seis espacio urbanismo.", "es espacio urbano.", "seis especies urbano.", "lois espacios urbano."
"serie estudios hispano." » "serie estudios hispana.", "serie 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 ("seis espacio urbano."))) or ("serie estudios hispano."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("series estudioss urbano.") OR ("seis espacio urbano."))) OR ("serie estudios hispano."))*.
• Removing quotes may allow a broader search: (((( series estudioss urbano. ) or ( seis espacio urbano. ))) or ( serie estudios hispano. ))*.