Perhaps you should try some spelling variations:
nhieu tang » chieu sang, hieu lang, nhiet nang
canh doanh » hanh doanh, chinh doanh, doanh doanh
phuong dan » phuong danh, phuong doan, huong dan
doanh cua » doanh luan
hieu van » hieu va, thien van, lieu va
cua bang » chua bang, cua ban, cua dang
toan tap » toan ban

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: doi ((hieu van) OR (nhieu tang)) - canh doanh cua bang phuong dan ((toan tap) OR (van ban))~.
• Adding a wildcard symbol may retrieve word variants: doi ((hieu van) or (nhieu tang)) - canh doanh cua bang phuong dan ((toan tap) or (van ban))*.