Perhaps you should try some spelling variations:
"series estudios hispanicos." » "series estudios historicos.", "series estudios hispano.", "series estudios islamicos.", "seis estudios hispanicos.", "tres estudios hispanicos.", "leyes estudios hispanicos."
"series estudios urbano." » "seis estudios urbano.", "tres estudios urbano.", "leyes estudios urbano.", "series estudio urbano.", "series estudios peruanos.", "series estudios hispano."
"serie estudios urbanos." » "serie estudio urbanos.", "serie estudios peruanoss.", "serie estudios hispanos."

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