Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hanh trang » thanh trung, canh tranh, hanh trinh
hanh tang » anh tang, hanh mang, hanh tung
cua nhung » va nhung
nho hieu » nha hieu, nho sieu, nhu hieu
cong ban » cong bang, cong san, cong tan
ban than » ban thanh, van thanh, ban hang
than cau » toan cau, phan cau, than cap
ho hieu » ho chieu, hoi hieu, co hieu

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