Perhaps you should try some spelling variations:
hieu lang » chieu sang, hieu quang, nhieu tang
cong nong » cong dong, cong cong, cong trong
son thanh » ban thanh, van thanh
thanh cau » thanh chau, thanh mau, nhanh cau
anh tang » anh bang, anh dang, anh nang
anh dung » anh dong, anh huong, sach dung
nong son » dong son, nong san, hong son
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 - ((anh tang) or (anh dung)) cua cong nong son thanh cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho hieu lang - ((anh tang) OR (anh dung)) cua cong nong son thanh cau*.