Perhaps you should try some spelling variations:
thanh trung » thanh tung
cong cong » cong dong, trong cong, dung cong
chi xanh » chi anh, chi hanh, chieu xanh
chi danh » chi dan, chi anh, chi dinh
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
toan tap » toan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi ((chi xanh) OR (chi danh)) - ((thanh trung) or (canh tranh)) cua cong cong tac toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((chi xanh) OR (chi danh)) - ((thanh trung) OR (canh tranh)) cua cong cong tac toan tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi ((chi xanh) OR (chi danh)) - ((thanh trung) or (canh tranh)) cua cong cong tac toan tap".
• Adding a wildcard symbol may retrieve word variants: doi ((chi xanh) OR (chi danh)) - ((thanh trung) or (canh tranh)) cua cong cong tac toan tap*.