Want a job in restaurant .

It doesn't look like you have anything to offer your employer aside from being good at talking.  Unfortunately, talking the customer's ear off is not encouraged in most restaurants.

As for your wish of having a yoga institution provides you with a degree (are you planning to pay for the course or do you expect your employer to give it to you for free?) so you can talk to their customers, it's too unrealistic for words.  (My first thought: What bizarre yoga class would hire someone to shatter their customers' tranquility with meaningless chatting?)

anujrathorekspg wrote:

I want a job in restaurant on which I can talk with people directly because I am good in attending guest or I am good in conversation.or sir if any yoga institution provides me a degree from yoga then I am always ready for working that institute because I can talk in a good way during making them learn yoga

There are many Indian restaurants in Vietnam,  especially in Ho Chi Minh City. You would need to contact them directly and network with the Indian  business community by searching on Google,  Facebook, TripAdvisor, etc. to get more information.

However, yoga is mostly taught by Vietnamese women, so I don't think there is much opportunity in teaching yoga.