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 tan, huong dan, cong dong
cong san » cong tac
chan cao » chan cho, chat cao, chay 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 (cong san)) chan cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo hieu lang - hanh tranh cua dung ((cong dan) OR (cong san)) chan cao".
• Adding a wildcard symbol may retrieve word variants: theo hieu lang - hanh tranh cua dung ((cong dan) OR (cong san)) chan cao*.