Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
doanh hoan » doanh doanh, doanh nhan, doanh luan
doanh khoa » toan khoa
dung cong » dung trong
ho chieu » theo chieu, hoc thieu, doi chieu
cua dung » cua dang, cua dong, qua dung
cong san » cong tac
phan dau » phan tu, hang dau

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 xanh - ((doanh hoan) OR (doanh khoa)) cua dung cong san ((phan lap) or (phan dau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu xanh - ((doanh hoan) OR (doanh khoa)) cua dung cong san ((phan lap) OR (phan dau))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu xanh - ((doanh hoan) OR (doanh khoa)) cua dung cong san ((phan lap) or (phan dau))*".