Perhaps you should try some spelling variations:
thanh trong » thanh trung, tranh trong, hanh trong
hien xanh » hien hanh, hien nhanh, chieu xanh
chua dang » cua dang, chua nang, chua xang
chua dong » cua dong, ha dong, huy dong
cong dan » cong san, cong tan, huong dan
dan than » dan chan, ban than, van than
than man » than ma, thanh san, tran manh

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 hien xanh - thanh trong ((chua dang) OR (chua dong)) cong dan than man~.
• Adding a wildcard symbol may retrieve word variants: hoc hien xanh - thanh trong ((chua dang) or (chua dong)) cong dan than man*.