Perhaps you should try some spelling variations:
"reales estudios hispana." » "reales estudios hispano.", "reales estudios hispanicos.", "reales estudios historia.", "reales estudio hispana.", "rurales estudios hispana.", "locales estudios hispana."
"series estudios urbanos." » "serie estudios urbanos.", "seis estudios urbanos.", "tres estudios urbanos.", "series estudio urbanos.", "series estudios peruanoss.", "series estudios hispanos."
"series estudios urbano." » "serie estudios urbano.", "seis estudios urbano.", "tres estudios urbano.", "series estudio urbano.", "series estudios peruanos.", "series estudios hispano."

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

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