Perhaps you should try some spelling variations:
"estudios humanos serie." » "estudios urbanos serie.", "estudios peruanos serie.", "estudios humanisticos serie.", "estudios humanos desde."
"estudios humanas serie." » "estudios mas serie.", "estudios humanidades serie."
"estudios las series." » "estudio las series.", "estudios mas series.", "estudios a series.", "estudios las sedes.", "estudios las especies."

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

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