Visa documents. (Ho Chi Minh City)

Hello! This is my first post on here. I apologise if I missed the thread that instructs me on this information. I have accepted a teaching job in HCMC and although I am arriving on a tourist visa, I will be obtaining a working visa once I arrive. What documents do I need to bring with me? My instructions from the employer were a bit unclear. I know I need my TESOL certificate original. I have my original university degree. I also have a copy of a signed notarised one from last year. I have been through the complicated Korean visa process. Is there any clear list anywhere or can someone who has been through this help me? Thank you in advance!!