Perhaps you should try some spelling variations:
"series estudioss hispano." » "series estudios hispano.", "series estudios hispanicos.", "series espacios hispano.", "serie estudios hispano.", "seis estudios hispano.", "serie estudio hispano.", "serie estudioss hispano.", "seis estudioss hispano.", "tres estudioss hispano."
"serie ensayos graficos." » "serie ensayos biograficos.", "serie ensayos criticos.", "serie ensayos juridicos.", "serie ensayo graficos."
"series estudios urbano." » "serie estudios urbano.", "seis estudios urbano.", "tres estudios urbano.", "series estudios urbanos.", "series estudio urbano.", "series estudios peruanos."

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