Perhaps you should try some spelling variations:
hieu quang » thieu quang, hieu quan, hieu qua
thanh nhau » thanh nhan, thanh chau, thanh hai
dung cong » dung trong
thanh nha » thanh nhan, thanh ha, thanh nga
tang cua » mang cua, hang cua, tang luan
cong san » cong tac
ho hieu » ho chieu, hoi hieu, nho hieu
ban cua » ban quan

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 quang - hanh ((tang cua) or (ban cua)) dung cong san ((thanh nhau) or (thanh nha))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho hieu quang - hanh ((tang cua) OR (ban cua)) dung cong san ((thanh nhau) OR (thanh nha)).
• Adding a wildcard symbol may retrieve word variants: ho hieu quang - hanh ((tang cua) or (ban cua)) dung cong san ((thanh nhau) or (thanh nha))*.