Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
thanh hang » thanh hoang, thanh thang, tranh hang
thanh tung » thanh cong
hieu manh » chieu xanh, hieu nganh, dieu hanh
dung cong » dung trong
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
toan ban » van ban
va dung » van dung, va duong, vat dung

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 manh) or (chieu sang)) - ((thanh hang) or (thanh tung)) va dung cong dan toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((hieu manh) OR (chieu sang)) - ((thanh hang) OR (thanh tung)) va dung cong dan toan ban.
• Adding a wildcard symbol may retrieve word variants: ho ((hieu manh) or (chieu sang)) - ((thanh hang) or (thanh tung)) va dung cong dan toan ban*.