For Khmer translations, you are best off going to either /r/learnkhmer or /r/cambodia

r/learnkhmer doesn't have many users, but they are probably the most likely to help (I am the moderator, you can also ask me and I'll do my best to help) - alternatively r/cambodia has a lot more users, and may be able to help you faster.

Just recommending, as this sub is practically dormant!