It looks like you're looking for a helpful post about watching Clueless (1995) with Vietnamese subtitles ("vietsub").
If you meant you already have the file and just need Vietsub subtitles, let me know and I can guide you on syncing them. xem phim clueless (1995 vietsub)
Here’s a concise, helpful guide:
Clueless is great for learning 90s slang and casual American English. Watching with both English and Vietnamese subtitles (dual subs) can be very effective. It looks like you're looking for a helpful