Perhaps you should try some spelling variations:
hanh trung » thanh trung, hanh trang, danh trung
manh trung » manh tung, thanh trung, manh hung
tieu xanh » tieu danh, chieu xanh, dieu hanh
cong cong » cong dong, trong cong, dung cong
cong tan » cong tac, cong san, cong thanh
tran ban » tranh ban, toan ban, tran bai
tran van » luan van

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: theo tieu xanh - ((hanh trung) OR (manh trung)) cua cong cong tan ((tran ban) OR (tran van))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo tieu xanh - ((hanh trung) or (manh trung)) cua cong cong tan ((tran ban) OR (tran van))~".
• Adding a wildcard symbol may retrieve word variants: theo tieu xanh - ((hanh trung) or (manh trung)) cua cong cong tan ((tran ban) OR (tran van))*.