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

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo hieu quan - hang doanh cua khong ((thong va) or (trong van)) han tai~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo hieu quan - hang doanh cua khong ((thong va) OR (trong van)) han tai.
• Adding a wildcard symbol may retrieve word variants: theo hieu quan - hang doanh cua khong ((thong va) or (trong van)) han tai*.