Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
thanh tran » thanh trang, thanh toan, thanh tra
tran thanh » ban thanh, van thanh, quan thanh
hoc thieu » toc thieu, hoc hien
hang cong » dang cong, hang nong, bang cong
tran van » luan van
van hang » van khang, van hoang, van thang
ban hang » ngan hang

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 hang cong ((tran thanh) OR (((ban hanh) OR (ban hang)))) lap~.
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - thanh tran van hang cong ((tran thanh) or (((ban hanh) or (ban hang)))) lap*.