Perhaps you should try some spelling variations:
hanh doanh » hang doanh, chinh doanh, doanh doanh
hoac khong » hoa khong, hoc khong, hay khong
theo hieu » theo chieu, theo tieu, thien hieu
cua thong » cua thuong, cua khong, cua tong
thong va » trong va, thong cua, truong va
han tai » hang tai, nhan tai, van tai
va han » va phan, van han, va hanh

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 (hoac khong)) thong va han tai~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo hieu qua - hanh doanh ((cua thong) OR (hoac khong)) thong va han tai.
• Adding a wildcard symbol may retrieve word variants: theo hieu qua - hanh doanh ((cua thong) or (hoac khong)) thong va han tai*.