Hi ba'c HDTua^'n, > > PS. Kinh nghie^.m cho tha^'y kho^ng ne^n bie^'t nhe^`u ky? nie^.m cu~ > cu?a ngu+o+`i mi`nh e^u, cho no' sa?ng khoa'i tha^`n kinh. > The^' co' ne^n cho ngu+o+`i mi`nh ye^u bie^'t nhie^`u ky? nie^.m cu~ cu?a mi`nh kho^ng, ba'c? HLinh