Perhaps you should try some spelling variations:
hieu lang » chieu sang, hieu quang, nhieu tang
hanh tang » hanh trang, hanh mang, hanh tung
luan dung » lan dung, luan dong, luan hung
dung cong » dung trong
anh tang » anh bang, anh dang, anh nang
cong dan » cong san, cong tan, huong dan
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.

• Performing a fuzzy search may retrieve terms with similar spellings: ho hieu lang - ((hanh tang) or (anh tang)) luan dung cong dan than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho hieu lang - ((hanh tang) OR (anh tang)) luan dung cong dan than cau.
• Adding a wildcard symbol may retrieve word variants: ho hieu lang - ((hanh tang) or (anh tang)) luan dung cong dan than cau*.