Perhaps you should try some spelling variations:
chieu tinh » lieu tinh, chau tinh, kieu tinh
doanh hoan » doanh doanh, doanh khoa, doanh nhan
hieu manh » chieu xanh, hieu nganh, dieu hanh
hang cong » dang cong, hang nong, bang cong
cong san » cong tac
hoan va » khoan va, hoang va, doan va
va hang » van hang, va nang, va lang
san van » tan van, luan van, tran van

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((hieu manh) OR (((chieu tinh) OR (trieu tinh)))) - doanh hoan va hang cong san van ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((hieu manh) or (((chieu tinh) OR (trieu tinh)))) - doanh hoan va hang cong san van ban~".
• Adding a wildcard symbol may retrieve word variants: ho ((hieu manh) or (((chieu tinh) OR (trieu tinh)))) - doanh hoan va hang cong san van ban*.