Almost all the people in the district of Phu Tan had to be evacuated ( mainly in the Cho Moi , An Phu ) . Almost all of the people in Phu Tan district had to be evacuated ( mainly to the Cho Moi , An Phu ) . Almost all of the people in An Phu had to be evacuated ( mainly to Cho Moi , Phu Tan District ) .