Perhaps you should try some spelling variations:
"serie studias espanoles." » "serie estudios espanoles.", "serie judios espanoles.", "serie estudiantes espanoles.", "serie studia espanoles.", "serie guias espanoles."
"series estudios urbano." » "serie estudios urbano.", "seis estudios urbano.", "tres estudios urbano.", "series estudios urbanos.", "series estudios peruanos.", "series estudios hispano."
"serie estudio urbano." » "serie estudios urbanos.", "serie espacio urbano.", "serie estudios urbano.", "serie studia urbano.", "serie estado urbano."

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (("serie studias espanoles.") or ((("serie estudio urbano.") OR ("series estudios urbano."))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("serie studias espanoles.") OR ((("serie estudio urbano.") OR ("series estudios urbano."))))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"serie studias espanoles.\") or (((\"serie estudio urbano.\") OR (\"series estudios urbano.\"))))*".
• Removing quotes may allow a broader search: (( serie studias espanoles. ) or ((( serie estudio urbano. ) OR ( series estudios urbano. ))))*.