Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, nhung don
hieu lang » chieu sang, hieu quang, nhieu tang
hanh tang » hanh trang, anh tang, hanh tung
hanh mang » nhanh mang, hanh trang, nhanh lang
hang cong » dang cong, hang nong, bang cong
dan than » dan chan, ban than, van than
than cau » toan cau, phan cau, than cap
ho hieu » ho chieu, hoi hieu, nho 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 lang - ((hanh tang) OR (hanh mang)) cua ((nhung cong) OR (hang cong)) dan than cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho hieu lang - ((hanh tang) OR (hanh mang)) cua ((nhung cong) or (hang cong)) dan than cau~".
• Adding a wildcard symbol may retrieve word variants: ho hieu lang - ((hanh tang) OR (hanh mang)) cua ((nhung cong) or (hang cong)) dan than cau*.