Perhaps you should try some spelling variations:
thanh quang » nhanh quang, thanh quan, than quang
thanh phung » thanh phuong, thanh hung, thanh chuong
khanh phung » khanh phong, thanh phuong, khanh thuong
hieu lang » chieu sang, hieu quang, nhieu tang
hoi hieu » hoi phieu, hoi tieu, moi hieu
dan than » ban than, van than, dan toan
dan chan » dan gian, dan ca, van chat

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: hoi hieu lang - thanh quang ((thanh phung) OR (khanh phung)) cong ((dan than) or (dan chan)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoi hieu lang - thanh quang ((thanh phung) OR (khanh phung)) cong ((dan than) OR (dan chan)) cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoi hieu lang - thanh quang ((thanh phung) OR (khanh phung)) cong ((dan than) or (dan chan)) cau".
• Adding a wildcard symbol may retrieve word variants: hoi hieu lang - thanh quang ((thanh phung) OR (khanh phung)) cong ((dan than) or (dan chan)) cau*.