Thanks for specifying my badly formulated question.
@Tod ********
that was exactly the answer I needed.
Just one more question, hope its not off topic. If I instead of search for a new non-o based on children, is it possible to get a tourist visa on arraival even thu I just had non-o for three months, and after that, visa for visiting children 2 months? Because I dont know how long the processing time is for the Non-o at the embassy in Vietnam.
Thanks 🙏