Perhaps you should try some spelling variations:
hien nhanh » hien hanh, thien thanh, tien thanh
dong doanh » dung doanh, trong doanh, doanh doanh
cua nhung » va nhung
cong doan » cong hoan, cong san, cong dong
cong dan » cong san, cong tan, huong dan
anh bai » sach bai, danh bat, hinh bai
bai cua » ban cua, dai cua, bai ca

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 - anh bai cua nhung ((((cong doan) OR (dong doanh))) or (cong dan)) van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien nhanh - anh bai cua nhung ((((cong doan) OR (dong doanh))) OR (cong dan)) van ban*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hien nhanh - anh bai cua nhung ((((cong doan) OR (dong doanh))) or (cong dan)) van ban*".