Student Visa for Spanish Language

by Michael
(La Paz)

Hi, My girlfriend wants to live in La Paz, Bolivia for a year, she is from Thailand, and she wants to learn spanish. Can she get a Student Visa as Spanish language Student?? Is there any language institute in La Paz , where she can enroll and where they can guide me how to get this Visa??. What advise can you give me??
She would be willing to do some kind of volunter work too, she does speak some english.
Last question: Do you know if there is a Consulado Onorario in Bangkok, Thailand (if not where is the closest one??)
Thank you very much for your help