Perhaps you should try some spelling variations:
hanh tranh » canh tranh, hanh trinh, hanh trang
theo hieu » theo chieu, theo tieu, thien hieu
hieu lang » chieu sang, hieu quang, nhieu tang
tranh cua » doanh cua, manh cua
cua dung » cua dang, cua dong, qua dung
cong dan » cong san, cong dong, cong tac
cong tan » cong tac, cong san, cong thanh
chay cao » cay cao, chat cao, nha cao

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo hieu lang - hanh tranh cua dung ((((cong dan) or (huong dan))) or (cong tan)) chay cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo hieu lang - hanh tranh cua dung ((((cong dan) OR (huong dan))) OR (cong tan)) chay cao.
• Adding a wildcard symbol may retrieve word variants: theo hieu lang - hanh tranh cua dung ((((cong dan) or (huong dan))) or (cong tan)) chay cao*.