Perhaps you should try some spelling variations:
thanh trung » thanh tung
thieu xanh » chieu xanh, hieu manh, thien anh
hanh tranh » canh tranh, hanh trinh, hanh trang
hoc thieu » toc thieu, hoc hien
dang cong » dung cong
cua dang » cua cong, cua ban
cong tan » cong tac, cong san, cong thanh

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 - ((hanh tranh) OR (thanh trung)) cua dang cong tan ((toan ban) OR (van ban))~.
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - ((hanh tranh) or (thanh trung)) cua dang cong tan ((toan ban) or (van ban))*.