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