Perhaps you should try some spelling variations:
hanh trang » thanh trung, canh tranh, hanh trinh
tieu xanh » tieu danh, chieu xanh, dieu hanh
vat dung » van dung, viet dung, mat duong
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
toan cau » toan cao, toan ban, toan tap
va dung » van dung, va duong, va ung

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "theo tieu xanh - hanh trang ((va dung) OR (vat dung)) cong tac toan cau~".
• Adding a wildcard symbol may retrieve word variants: theo tieu xanh - hanh trang ((va dung) OR (vat dung)) cong tac toan cau*.