Finding the talent should be easy, I know quite a few people in VN and HK is a desirable place for them to come live and work in. I can put you in touch with some folks in Hanoi and HCMC who can assist with the recruiting, however you need to be willing to sponsor the employment visa. Minimum salary to get working visa approved is around 17K HKD per month.
Have you thought about opening a small office in VN? That might be more practical.