Perhaps you should try some spelling variations:
"serie estudios cervantinos." » "serie estudios mercantiles.", "serie estudios criticos.", "serie estudios andinos."
"series estudios urbanos." » "seis estudios urbanos.", "tres estudios urbanos.", "leyes estudios urbanos."
"serie studias urbanos." » "serie estudios urbano.", "serie studia urbanos.", "serie guias urbanos.", "serie estudio 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: (((("serie estudios cervantinos.") or ("series estudios urbanos."))) or ("serie studias urbanos."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("serie estudios cervantinos.") OR ("series estudios urbanos."))) OR ("serie studias urbanos.")).
• Removing quotes may allow a broader search: (((( serie estudios cervantinos. ) or ( series estudios urbanos. ))) or ( serie studias urbanos. )).
• Adding a wildcard symbol may retrieve word variants: (((("serie estudios cervantinos.") or ("series estudios urbanos."))) or ("serie studias urbanos."))*.