In a large bowl, combine Greek yogurt, coconut milk, curry paste, turmeric, fish sauce, and lime juice. Add chicken and cover all pieces well. Cover and marinade at least a few hours, or overnight. Place cherry wood chips in smoker box and heat until smokey. Place chicken over direct heat, cover and grill for 5 minutes. After 5 minutes, move chicken to one side of grill and cook over indirect heat, covered, until cooked through, about 25 minutes.