Perhaps you should try some spelling variations:
cong cong » cong dong, trong cong, dung cong
hieu lang » chieu sang, hieu quang, nhieu tang
anh nang » ganh nang, anh bang, anh dang
nang duc » nang luc, nang doc, nang du
duc cong » duc cuong, nuoc cong, chuc cong
dan chan » dan gian, dan ca, van chat
ban than » ban thanh, van thanh, ban hang
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 nang duc cong cong ((dan chan) or (ban than)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho hieu lang - anh nang duc cong cong ((dan chan) OR (ban than)) cau.
• Adding a wildcard symbol may retrieve word variants: ho hieu lang - anh nang duc cong cong ((dan chan) or (ban than)) cau*.