Perhaps you should try some spelling variations:
chinh doanh » kinh doanh
thien hach » thien thanh, hien hanh
nhung cong » dung cong, thong cong, hang cong
hien hach » hien hanh, hien nhanh, hien khanh
doanh cua » doanh luan
cua nhung » va nhung
dan toan » van toan, dan than, manh toan
van tan » van tuan, van ban, van tai

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

• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien hach) OR (thien hach)) - chinh doanh cua nhung cong ((dan toan) OR (van tan)) ban~.
• Adding a wildcard symbol may retrieve word variants: hoc ((hien hach) or (thien hach)) - chinh doanh cua nhung cong ((dan toan) or (van tan)) ban*.