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."
"senales estudios hispano." » "senales estudio hispano.", "sociales estudios hispano.", "series estudios hispano."
"series estudio urbano." » "series estudios urbano.", "serie estudio urbano.", "serie estudios urbano.", "series estudios urbanos.", "series espacio urbano."

Try widening your search to All Fields.

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