o dau cung co nhung thang trong can sa het , ma o my voi canada nhieu hon , o do con lam nhuc cai cong dong duuoc goi la cong dong vn , tai sao tui no khong biet nhuc ma con vui mung ,o au chau thang nao lam thi cu lam cung chang thang nao biet vi o au chau ho song da so rai rac , khong co song tu tap nhu o my hay la uc