Perhaps you should try some spelling variations:
doanh doanh » toan doanh, doanh hoan, doanh thanh
hien hach » thien hach, hien hanh, hien nhanh
doanh thi » doanh tai, doanh thu, doan thi
dung cong » dung trong
ban thanh » ban hanh, ban hang
thanh cha » thanh ha, thanh nha, thanh phan
thi dung » thi huong, thi nhung, thi cong
cong ban » cong bang, cong san, cong tan

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 hach - doanh doanh thi dung cong ban thanh cha~.
• Adding a wildcard symbol may retrieve word variants: hoc hien hach - doanh doanh thi dung cong ban thanh cha*.