Perhaps you should try some spelling variations:
estudios urbano » estudios urbanos, estudios peruanos, d'estudis urbans
serret estudios » serie estudios, series estudios, secretos estudios
series estudio » series estudios, serie estudio, serie estudios
estudio urbano » estudios urbanos, espacio urbano
dos estudios » los estudios
hispano. » hispana., 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 estudio urbano. ) or ( dos estudios urbano. ))) or ( serret estudios hispano. ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((( series estudio urbano. ) OR ( dos estudios urbano. ))) OR ( serret estudios hispano. )).
• Adding a wildcard symbol may retrieve word variants: (((( series estudio urbano. ) or ( dos estudios urbano. ))) or ( serret estudios hispano. ))*.