Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
nhanh mang » nhanh lang, hanh mang, nhanh quang
hieu lang » chieu sang, hieu quang, nhieu tang
cua dang » cua ban
cong tac » cong ty
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: theo ((chieu xanh) or (hieu lang)) - nhanh mang ((cua dang) or (cua cong)) cong tac toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu xanh) OR (hieu lang)) - nhanh mang ((cua dang) OR (cua cong)) cong tac toan ban.
• Adding a wildcard symbol may retrieve word variants: theo ((chieu xanh) or (hieu lang)) - nhanh mang ((cua dang) or (cua cong)) cong tac toan ban*.