Same as in Thailand, nightclubs, bars and massage saloons will help you to find out.
There are a lot prostitutes in those spots working as freelancers.
You can easily find them in the beaches and every corner of the crowded streets.
Even though for 2 nights with the aim of business meeting, they engage sexual activity for sure.
Thailand one of the best even can be considered the top of the list destination in sex tourism among the whole world.
This reputation seems to be grown in very soon and Cambodia will become a famous spot for sex tourism.