Perhaps you should try some spelling variations:
nhung doanh » nhung danh, dung doanh, nhung don
chinh doanh » kinh doanh
hang doanh » hanh doanh, van doanh, dung doanh
theo hieu » theo chieu, theo tieu, thien hieu
cua thong » cua thuong, cua khong, cua tong
thong van » trong van, thong va, thong quan
van nhan » van phan, van thanh, danh nhan
nhan tai » hang tai, van tai, toan 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 qua - ((((hang doanh) OR (nhung doanh))) or (chinh doanh)) cua thong thong van nhan tai~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo hieu qua - ((((hang doanh) OR (nhung doanh))) OR (chinh doanh)) cua thong thong van nhan tai.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo hieu qua - ((((hang doanh) OR (nhung doanh))) or (chinh doanh)) cua thong thong van nhan tai".
• Adding a wildcard symbol may retrieve word variants: theo hieu qua - ((((hang doanh) OR (nhung doanh))) or (chinh doanh)) cua thong thong van nhan tai*.