Perhaps you should try some spelling variations:
"artes estudio urbano." » "artes estudios urbano.", "artes espacio urbano.", "arte estudio urbano.", "partes estudios urbano.", "arte estudios urbano."
"tres estudios urbanos." » "otros estudios urbanos.", "los estudios urbanos.", "dos estudios urbanos."
"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: (((("tres estudios urbanos.") or ("artes estudio urbano."))) or ("serie estudios hispano."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tres estudios urbanos.") OR ("artes estudio urbano."))) OR ("serie estudios hispano."))*.
• Removing quotes may allow a broader search: (((( tres estudios urbanos. ) or ( artes estudio urbano. ))) or ( serie estudios hispano. ))*.