Perhaps you should try some spelling variations:
"rurales estudios hispano." » "reales estudios hispano.", "locales estudios hispano.", "morales estudio hispano."
"reales estudio hispano." » "reales estilo hispano.", "reales estudios hispanicos.", "reales estudios hispano.", "senales estudio hispano.", "redes estudio 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 ((("reales estudio hispano.") or ("rurales estudios hispano."))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("series estudio urbano.") OR ((("reales estudio hispano.") OR ("rurales estudios hispano.")))).
• Removing quotes may allow a broader search: (( series estudio urbano. ) or ((( reales estudio hispano. ) or ( rurales estudios hispano. )))).
• Adding a wildcard symbol may retrieve word variants: (("series estudio urbano.") or ((("reales estudio hispano.") or ("rurales estudios hispano."))))*.