Perhaps you should try some spelling variations:
thanh trung » thanh tung
tieu xanh » tieu danh, chieu xanh, dieu hanh
cua dung » cua dang, qua dung, cua rung
cua dong » chua dong, cua cong, cua dang
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
toan cau » toan cao, toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo tieu xanh - thanh trung ((cua dung) OR (cua dong)) cong tac toan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo tieu xanh - thanh trung ((cua dung) OR (cua dong)) cong tac toan cau*".