Perhaps you should try some spelling variations:
hanh doanh » hang doanh, chinh doanh, doanh doanh
chieu xanh » chieu sach, chieu sang, chieu tinh
hieu lang » chieu sang, hieu quang, nhieu tang
cua khong » cua phuong, cua thuong, cua cong
hua khong » hoa khong, hoac khong, phuc khong
cong san » cong tac
san han » san phan, san van, van han
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 lang) or (chieu xanh)) - hanh doanh ((cua khong) OR (hua khong)) cong san han tai~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((hieu lang) OR (chieu xanh)) - hanh doanh ((cua khong) OR (hua khong)) cong san han tai.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((hieu lang) or (chieu xanh)) - hanh doanh ((cua khong) OR (hua khong)) cong san han tai".
• Adding a wildcard symbol may retrieve word variants: theo ((hieu lang) or (chieu xanh)) - hanh doanh ((cua khong) OR (hua khong)) cong san han tai*.