edison, do you remember I told you once I like you because you´re one of the most reasonable members on this forum?
you may want to see close connection to vietnam, but I doubt the majority of chinese want. no doubt, we both share indeed some similarities, in cultures, custom and language. and of course, we both the people belonged once to the same nation. but unfortunately we both have more differences than commonalities. that is the reason why we both go our own ways. good luck my friend.
vietnam belongs to southeast, not east asia. just stating a fact.
by the way, today if you visit an asia restaurant/bistro in germany, regardless of the name: vietnamese, chinese or thai, they are mostly run by vietnamese. we can serve you the best foods from china