flaws cua cai study nay la: 1) nghien cuu da ko the biet duoc incomes cua nhung Viet lam nghe Nails va mot so luong kha lon nguoi Viet lam giau bang nghe nay. 2) co' nhung nguoi Vietnam co trinh do dai hoc o VN truoc hoac sau 75's co le da ko duoc tinh vao kien thuc hoc van.
3) co the^? nhieu nguoi lanh tien that nghiep de ve VN huong thu chu' chua chac la ko kiem duoc viec.
Ngoai ra toi cung dong y voi cach ly' luan cua "phokhuya"
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