Perhaps you should try some spelling variations:
"estudios linguisticos desde." » "estudio linguistico desde.", "estudio sociolinguistico desde.", "estudios linguisticas desde.", "estudios linguistica desde.", "estudios linguisticos del."
"estudios americanos jose." » "estudios latinoamericanos jose.", "estudios americano jose.", "estudios americanos joan.", "estudios americanos los."
"estudios mas series." » "estudios a series.", "estudios maior series.", "estudios de series.", "estudios las series.", "estudios das series.", "estudios mater series."

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("estudios americanos jose.") OR ("estudios linguisticos desde."))) OR ("estudios mas series."))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"estudios americanos jose.\") OR (\"estudios linguisticos desde.\"))) OR (\"estudios mas series.\"))".
• Removing quotes may allow a broader search: (((( estudios americanos jose. ) OR ( estudios linguisticos desde. ))) OR ( estudios mas series. )).
• Adding a wildcard symbol may retrieve word variants: (((("estudios americanos jose.") OR ("estudios linguisticos desde."))) OR ("estudios mas series."))*.