Perhaps you should try some spelling variations:
hanh doanh » hang doanh, chinh doanh, doanh doanh
theo hieu » theo chieu, theo tieu, thien hieu
doanh cua » doanh luan
cua thong » cua thuong, cua khong, cua tong
thong van » thong va, thong quan, truong van
trong van » trong cac
han tai » hang tai, nhan tai, van tai

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "theo hieu qua - hanh doanh cua thong ((thong van) OR (trong van)) han tai~".
• Adding a wildcard symbol may retrieve word variants: theo hieu qua - hanh doanh cua thong ((thong van) OR (trong van)) han tai*.