You need someone that sells crowntv

Crown - https://greatiptvsub.com/cart.php?gid=3

Some websites have almost those Vietnamese channels you listed.

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http://vtvgo.vn

https://www.vtc.gov.vn

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There are also the apps for them. Search for VTVgo, VTCnow in Apple Store or Google Store or Window Store.

Email me for getting crown tv subs. They carry vietnamese channels. Dansolutions2017@gmail.com

http://ckaratech.com take a look they have plenty of Viet channels to offers