Perhaps you should try some spelling variations:
"series estudioss urbano." » "series estudios urbano.", "serie estudios urbano.", "serie estudos urbano.", "series estudios urbanos.", "series estudio urbano."
"seis estudios urbano." » "seis estudios urbanos.", "seis estudio urbano.", "seis estudios peruanos.", "los estudios urbano.", "dos estudios urbano.", "dios estudios urbano."
"serie estudio urbanos." » "serie estudios urbanos.", "serie estudio urbano.", "serie estudios peruanos.", "series estudios urbanos.", "serie studia urbanos."

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