As shared by senior member to me
1 - After chop passpot, take escalator go down
2 - Exit immigration, money changer in front
3 - After that Exit the depature hall..in front there are cabs but unknown companies.
4 - Go right to look for the side door to go back inside
5 - Go up x 2 and exit domestic departure
6 - Walk toward right where u see ppl q up for Vinasun cab,,,
7 - Show the driver the hotel address cos they don't speak English