Perhaps you should try some spelling variations:
tien thanh » tien thinh, tran thanh, den thanh
luan trong » quan trong, luat trong, luan tuong
tien manh » tien anh, tieng anh, tran manh
hanh tang » hanh trang, anh tang, hanh mang
tang luan » dung luan
cong dan » cong san, cong tan, huong dan
dan chan » dan gian, dan ca, van chat
chan cao » chan cho, chat cao, chay cao

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((tien manh) OR (tien thanh)) - hanh tang luan trong cong dan chan cao~".
• Adding a wildcard symbol may retrieve word variants: hoc ((tien manh) OR (tien thanh)) - hanh tang luan trong cong dan chan cao*.