that buo, long toi da buon lạ cang buon hon khi doc bai vjet nay, nhung toi that su cam on nguoi ban da gui baj vjet nay, da lau rui toi khong duoc cung chung vui voi nhung nguoi ban cu, jo la ngoi doc toi that su khong the nao cam long duoc, xin gui den ban hạ chu "cam on,"