From Phnom Penh, go north to Kampong Cham, 125KM or so either on Rt 6 or follow the river on rt 223. From there go to Kratie cross the Mekong either at Kampong Cham or a Steung Trang,130km or so. Then head north to Steung Traeng also about 140km. From there you have to figure your own way as I do not know further.
OBTW I live in Kampong Cham
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