Perhaps you should try some spelling variations:
hanh doanh » hang doanh, chinh doanh, doanh doanh
chieu sang » chieu sach, chieu xanh, hieu lang
chau tinh » cuu tinh, ha tinh, cua tinh
doanh cua » doanh luan
hang cong » hang nong, bang cong, thanh cong
dang cong » dung cong
tac ran » tac can, tac van, tac quan
ran cau » van cau, ban cau, can cau

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((chieu sang) or (chau tinh)) - hanh doanh cua ((hang cong) OR (dang cong)) tac ran cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sang) OR (chau tinh)) - hanh doanh cua ((hang cong) OR (dang cong)) tac ran cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu sang) or (chau tinh)) - hanh doanh cua ((hang cong) OR (dang cong)) tac ran cau".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sang) or (chau tinh)) - hanh doanh cua ((hang cong) OR (dang cong)) tac ran cau*.