Perhaps you should try some spelling variations:
hien nhanh » hien hanh, thien thanh, tien thanh
tranh cua » doanh cua, manh cua
dung cong » dung trong
tran chau » tranh chap, tran huu
cua dung » cua dang, cua dong, qua dung
cong san » cong tac
tran cau » toan cau, ran cau, tra cau

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hien nhanh - canh tranh cua dung cong san ((tran cau) or (tran chau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien nhanh - canh tranh cua dung cong san ((tran cau) OR (tran chau)).
• Adding a wildcard symbol may retrieve word variants: hoc hien nhanh - canh tranh cua dung cong san ((tran cau) or (tran chau))*.