Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
hoc chieu » hoc thieu, ho chieu, hoc hien
hanh sinh » hanh dinh, hinh sinh, hanh chinh
hanh tinh » hanh trinh, nhanh tinh, thanh tinh
dung cong » dung trong
cua dung » cua dang, cua dong, qua dung
cong san » cong tac
toan cao » toan tap
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc chieu xanh - ((hanh sinh) or (hanh tinh)) cua dung cong san ((toan cao) OR (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu xanh - ((hanh sinh) OR (hanh tinh)) cua dung cong san ((toan cao) OR (toan ban)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc chieu xanh - ((hanh sinh) or (hanh tinh)) cua dung cong san ((toan cao) OR (toan ban))".
• Adding a wildcard symbol may retrieve word variants: hoc chieu xanh - ((hanh sinh) or (hanh tinh)) cua dung cong san ((toan cao) OR (toan ban))*.