Here is the list of country that you will need no visa to go there:
1 | Singapore
You must have valid passport where you can stay up to 30 days during your visit.
2 | Malaysia
You can also stay up to 30 days to travel around the country or to enjoy your trip.
3 | Indonesia
Of course, It is also 30 days and will be enough for holidays or any purpose of your trip.
4 | Philippines
Allow 30 days when you take a trip there.
5 | Brunei
You will be able to stay there for only 14 days.
6 | Vietnam
Cambodian people with Cambodian passport can go there to visit the country up to 30 days.
7 | Thailand
There will be a period of 14 days you can stay and visit the country.
8 | Laos
You can stay in Laos up to 30 days but the passport must be valid for at least 90 days before it expires.
9 | Myanmar
You can stay in the country up to 14 days but the passport must be valid up to 6 months before expire date.
Reference: Sabay News