Perhaps you should try some spelling variations:
hanh doanh » hang doanh, chinh doanh, doanh doanh
theo hieu » theo chieu, theo tieu, thien hieu
cua thong » cua thuong, cua khong, cua tong
hoa khong » khoi khong, hoa cong, he khong
thong van » trong van, thong va, thong quan
han tai » hang tai, nhan tai, toan tai
van tai » von tai, van tuan

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 - hanh doanh ((cua thong) or (hoa khong)) thong van ((han tai) OR (van tai))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo hieu qua - hanh doanh ((cua thong) OR (hoa khong)) thong van ((han tai) OR (van tai)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo hieu qua - hanh doanh ((cua thong) or (hoa khong)) thong van ((han tai) OR (van tai))".
• Adding a wildcard symbol may retrieve word variants: theo hieu qua - hanh doanh ((cua thong) or (hoa khong)) thong van ((han tai) OR (van tai))*.