Having been to Da Lat many times for work and tourism, there are also many passenger transport companies serving the route Ho Chi Minh City - Da Lat (Lam Dong). However, this time I was served by DIEU HOA Bus from Duc Trong (Lam Dong) back to Nga Tu Ga ([District 12 - old] - Ho Chi Minh City), trip 22:30PM - 03:45AM; the most interesting thing is the professionalism of the ticket sellers, drivers, bus assistants, ... along with the application of digital technology for booking confirmation. Absolutely wonderful.