Perhaps you should try some spelling variations:
"series estudios hispanicos." » "series estudios historicos.", "series estudios islamicos.", "series estudios hebraicos.", "serie estudios hispanicos.", "seis estudios hispanicos.", "tres estudios hispanicos."
"series estudios hispano." » "serie estudios hispano.", "seis estudios hispano.", "tres estudios hispano."
"serie estudio urbano." » "serie estudios urbano.", "serie estudios urbanos.", "serie espacio urbano.", "serie studia urbano.", "serie estado 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 estudios hispanicos.") or ("series estudios hispano."))) or ("serie estudio urbano."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("series estudios hispanicos.") OR ("series estudios hispano."))) OR ("serie estudio urbano.")).
• Removing quotes may allow a broader search: (((( series estudios hispanicos. ) or ( series estudios hispano. ))) or ( serie estudio urbano. )).
• Adding a wildcard symbol may retrieve word variants: (((("series estudios hispanicos.") or ("series estudios hispano."))) or ("serie estudio urbano."))*.