Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu xanh » chieu sach, chieu sang, chieu tinh
hoc chieu » hoc thieu, ho chieu, hoc hien
cuu nong » cuu cong, cuu nang, cuu tong
cong san » cong tac
khan cap » khan ap, than cap, khoan cam
phan cau » phan dau, phan cac, phan tu

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 - thanh trung ((cuu nong) or (cua cong)) cong san ((khan cap) or (phan cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu xanh - thanh trung ((cuu nong) OR (cua cong)) cong san ((khan cap) OR (phan cau)).
• Adding a wildcard symbol may retrieve word variants: hoc chieu xanh - thanh trung ((cuu nong) or (cua cong)) cong san ((khan cap) or (phan cau))*.