Perhaps you should try some spelling variations:
hoc thieu » toc thieu, hoc hien
luan hung » luan chung, lan hung, luan ung
hung cong » nhung cong, hung cuong, phung cong
doc hieu » toc thieu, hoc hien
anh dung » anh dong, anh huong, sach dung
cong san » cong tac
than cau » toan cau, than cap, thanh chau
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: ((doc hieu) or (hoc thieu)) xanh - anh dung luan hung cong san ((than cau) or (phan cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doc hieu) OR (hoc thieu)) xanh - anh dung luan hung cong san ((than cau) OR (phan cau)).
• Adding a wildcard symbol may retrieve word variants: ((doc hieu) or (hoc thieu)) xanh - anh dung luan hung cong san ((than cau) or (phan cau))*.