Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
hanh trang » thanh trung, canh tranh, minh trang
hieu lang » chieu sang, hieu quang, nhieu tang
cua trong » cua truong, cua trung, qua trong
hop hieu » hop nhieu, hoi hieu, hoc thieu
cong dan » cong san, cong tan, huong dan
than cau » toan cau, phan cau, than cap

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: hop hieu lang - ((hanh trang) OR (hanh trinh)) cua trong cong dan ((than cau) OR (phan tu))~.
• Adding a wildcard symbol may retrieve word variants: hop hieu lang - ((hanh trang) or (hanh trinh)) cua trong cong dan ((than cau) or (phan tu))*.