Perhaps you should try some spelling variations:
"reales estudios hispana." » "reales estudios hispanicos.", "reales estudios historia.", "reales estudio hispana.", "rurales estudios hispana.", "locales estudios hispana."
"series estudios urbano." » "serie estudios urbano.", "seis estudios urbano.", "tres estudios urbano.", "series estudios urbanos.", "series estudio urbano.", "series estudios peruanos."
"reales estudios hispano." » "reales estudio hispano.", "rurales estudios hispano.", "locales 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 urbano.") or ((("reales estudios hispano.") OR ("reales estudios hispana."))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("series estudios urbano.") OR ((("reales estudios hispano.") OR ("reales estudios hispana.")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"series estudios urbano.\") or (((\"reales estudios hispano.\") OR (\"reales estudios hispana.\"))))".
• Removing quotes may allow a broader search: (( series estudios urbano. ) or ((( reales estudios hispano. ) OR ( reales estudios hispana. )))).
• Adding a wildcard symbol may retrieve word variants: (("series estudios urbano.") or ((("reales estudios hispano.") OR ("reales estudios hispana."))))*.