Thanks for the comment!
Yes, after you've lived here for two years, at least two years of time on your visa, I think consecutively. You don't have to actually physically be here, but have two years of visa time. They will then issue you a pass where you can visit all the temples for free as well. I believe that after five years, you can also apply for Cambodian citizenship.

Cambodia is a fairly interesting country with lots of possibilities and is developing fast. I think in the next ten years, it will be a force in Southeast Asia.