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