Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
duong cong » dung cong, luong cong, duong trong
hoc chieu » hoc thieu, ho chieu, hoc hien
hanh hang » thanh hang, hang hang, hanh han
va duong » van duong, va tuong, va huong
cong san » cong tac
than cap » thanh lap, thanh cac, than cua
khan cap » khan ap, khoan cam, phan cac

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 tinh - hanh hang va duong cong san ((than cap) or (khan cap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu tinh - hanh hang va duong cong san ((than cap) OR (khan cap)).
• Adding a wildcard symbol may retrieve word variants: hoc chieu tinh - hanh hang va duong cong san ((than cap) or (khan cap))*.