Perhaps you should try some spelling variations:
duong cong » dung cong, luong cong, duong trong
hanh tranh » canh tranh, hanh trinh, hanh trang
tieu xanh » tieu danh, chieu xanh, dieu hanh
tranh cua » doanh cua, manh cua
dong cong » dung cong, dang cong, cong cong
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 - hanh tranh cua ((dong cong) OR (duong cong)) tac toan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo tieu xanh - hanh tranh cua ((dong cong) OR (duong cong)) tac toan cau*".