You can find all the information here “Cursor for Students | Cursor - The AI Code Editor”. You can always try, just remember that in order to use this discount, your Cursor account email must match your valid “.edu” university email, and you must use that same email to verify your student status but currently I think Vietnam is not supported. Here is the list of countries supported for student discount. “Which universities are eligible?
Due to our verification process, this promotion is only available for verified students at universities in the following countries: Australia, Austria, Belgium, Bulgaria, Canada, Chile, Colombia, Croatia, Cyprus, Czechia, Denmark, Estonia, Finland, France, Georgia, Germany, Greece, Hungary, Ireland, Israel, Italy, Japan, Latvia, Lithuania, Mexico, Netherlands, New Zealand, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, South Africa, Spain, Sweden, Switzerland, United Arab Emirates, United Kingdom, United States.”