Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu sach » chinh sach, chiet tach, chieu sang
chieu xanh » chieu sang, chieu tinh, hieu manh
dung cong » dung trong
trung ha » trung hoc, trung tam, trung cap
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
toan tap » toan ban
ha dung » hai dung, kha dung, nha dung

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 sach) or (chieu xanh)) - thanh trung ha dung cong tac toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu sach) OR (chieu xanh)) - thanh trung ha dung cong tac toan tap.
• Adding a wildcard symbol may retrieve word variants: theo ((chieu sach) or (chieu xanh)) - thanh trung ha dung cong tac toan tap*.