There is a dance video in which a person has been tickling in various ways. It comes from Vietnam. What's its name?

That's an advertising video of Pikang Wang, called Vietnam Tickle Dance, which shows that Vietnamese people were deeply influenced by their bodies before.

Itchy troubles, all kinds of tickling, even invented itchy dance, and later had Pikang Wang, which effectively treated itching …

... although what I described is boring, it is actually a very interesting video, which is very fun.