Perhaps you should try some spelling variations:
nhung cong » dung cong, hang cong, nhung don
hanh doanh » hang doanh, chinh doanh, doanh doanh
thong cong » trong cong, tong cong, thong thong
hieu tinh » chieu tinh, lieu tinh, kieu tinh
doanh cua » doanh luan
van thanh » ban thanh
van tuan » van quan, van ban, anh tuan
co hieu » cao hieu, doc hieu

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: co hieu tinh - hanh doanh cua ((nhung cong) OR (thong cong)) ((van thanh) OR (van tuan)) san~.
• Adding a wildcard symbol may retrieve word variants: co hieu tinh - hanh doanh cua ((nhung cong) or (thong cong)) ((van thanh) or (van tuan)) san*.