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