Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu xanh » chieu sang, chieu tinh, hieu manh
chieu sach » chinh sach, chiet tach, chieu sang
bien tinh » bi tinh, yen tinh, diep tinh
trung cac » truong cac, trung cap, trong cac
ban cong » bang cong, van cong, phan cong
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
toan tap » toan ban
cac ban » cac dan, cac van, can ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((((chieu xanh) or (chieu sach))) or (bien tinh)) - thanh trung cac ban cong tac toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((((chieu xanh) OR (chieu sach))) OR (bien tinh)) - thanh trung cac ban cong tac toan tap.
• Adding a wildcard symbol may retrieve word variants: hoc ((((chieu xanh) or (chieu sach))) or (bien tinh)) - thanh trung cac ban cong tac toan tap*.