Perhaps you should try some spelling variations:
chung cong » nhung cong, chong cong, phung cong
luan chung » luan chinh
hieu xanh » chieu xanh, hieu manh, hieu nganh
doc hieu » toc thieu, hoc thieu, hoc hien
anh sang » lanh sang, anh dang, anh nang
anh bang » anh hoang, anh quang, tinh bang
cong tac » cong ty
tac than » tac thanh, tam than, tac nhan
than cau » toan cau, phan cau, than cap

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 xanh - ((anh sang) or (anh bang)) luan chung cong tac than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc hieu xanh - ((anh sang) OR (anh bang)) luan chung cong tac than cau*.