Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
thanh tran » thanh trang, thanh toan, thanh tra
hoc thieu » toc thieu, hoc hien
tong cong » cong cong, dung cong, dang cong
tran van » luan van
ban hang » ngan hang
hang dau » hang va, hang tai

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

• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - thanh tran van ((trong cong) OR (tong cong)) ban hang dau~.
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - thanh tran van ((trong cong) or (tong cong)) ban hang dau*.