Perhaps you should try some spelling variations:
hanh tranh » canh tranh, hanh trinh, hanh trang
hieu lang » chieu sang, hieu quang, nhieu tang
tranh cua » doanh cua, manh cua
cua nhung » va nhung
nha hieu » nha dieu, nghe hieu, phan hieu
cong dan » cong san, cong tan, cong dong
toan tap » toan ban

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: nha hieu lang - hanh tranh cua nhung ((cong dan) OR (huong dan)) toan tap~.
• Adding a wildcard symbol may retrieve word variants: nha hieu lang - hanh tranh cua nhung ((cong dan) or (huong dan)) toan tap*.