Perhaps you should try some spelling variations:
hieu lang » chieu sang, hieu quang, nhieu tang
lanh manh » lanh tranh, lan anh, van manh
dang cong » dung cong
hoi hieu » hoi phieu, hoi tieu, moi hieu
manh cua » doanh cua, ban cua
cua dang » cua cong, cua ban
dan toan » van toan, manh toan, xuan toan
dan than » dan chan, ban than, van than

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 - lanh manh cua dang cong ((dan toan) or (dan than)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoi hieu lang - lanh manh cua dang cong ((dan toan) OR (dan than)) cau.
• Adding a wildcard symbol may retrieve word variants: hoi hieu lang - lanh manh cua dang cong ((dan toan) or (dan than)) cau*.