Perhaps you should try some spelling variations:
chieu sang » chieu sach, hieu lang, nhieu tang
chieu xanh » chieu sach, chieu tinh
thanh tran » thanh trang, thanh toan, thanh tra
hieu manh » hieu nganh, dieu hanh, hien hanh
tran tran » tan tran, tran tuan, tran tan
tran dung » tran dang, tran hung, tran quang
trong tac » trong cac, tuong tac, trong tan
tac toan » tap toan, tam toan, hach toan
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((chieu sang) or (((chieu xanh) OR (hieu manh)))) - thanh tran tran dung trong tac toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sang) OR (((chieu xanh) OR (hieu manh)))) - thanh tran tran dung trong tac toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu sang) or (((chieu xanh) OR (hieu manh)))) - thanh tran tran dung trong tac toan ban".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sang) or (((chieu xanh) OR (hieu manh)))) - thanh tran tran dung trong tac toan ban*.