New business venture (small)

Good day/evening people.

I am visiting Viet Nam in January 2018 with the intentions of doing some research on starting a small business venture in the country. I will be visiting HCMC and travelling the coast between there and Nha Trang, also I would love to see the opportunities Phu Quoc has to offer

I have holidayed in Thailand for the last 4 years and although I love the place, it is not somewhere I would want to stay permanently. I though about starting business there but I feel there is too much corruption and back handers going on. I understand every country in the world has corruption etc but I am hoping for advice on this and if anyone has any experience of doing the same as I am looking to do I would appreciate any advice

Thanks in advance