1963 Vietsub — Mixte
I notice you're asking about "Mixte 1963 Vietsub" — this appears to refer to the French series (also known as Voltaire High ), which is set in 1963 at an all-boys high school that becomes coeducational. "Vietsub" means Vietnamese subtitles.
Would you like a detailed episode summary or help finding a specific Vietsub source? Mixte 1963 Vietsub