Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
hanh trang » thanh trung, canh tranh, minh trang
nhung cong » dung cong, thong cong, hang cong
hieu lang » chieu sang, hieu quang, nhieu tang
cua nhung » va nhung
nho hieu » nha hieu, nho sieu, nhu hieu
dan toan » van toan, manh toan, xuan toan
dan than » dan chan, ban than, van than

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: nho hieu lang - ((hanh trang) OR (hanh trinh)) cua nhung cong ((dan toan) OR (dan than)) cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "nho hieu lang - ((hanh trang) OR (hanh trinh)) cua nhung cong ((dan toan) or (dan than)) cau~".
• Adding a wildcard symbol may retrieve word variants: nho hieu lang - ((hanh trang) OR (hanh trinh)) cua nhung cong ((dan toan) or (dan than)) cau*.