Perhaps you should try some spelling variations:
"estudios humanisticos desde." » "estudios linguisticos desde.", "estudios humanisticos serie.", "estudios humanisticas de.", "estudios humanisticos en."
"estudios humanos desde." » "estudios urbanos desde.", "estudios peruanos desde.", "estudios ensayos desde.", "estudios humanos de."
"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.

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