Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu xanh » chieu sach, chieu sang, chieu tinh
cua thuong » cua truong, cua phuong, ca thuong
doi chieu » doc hieu, doi chi, ho chieu
cua thong » cua khong, cua tong, suat thong
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: doi chieu xanh - ((canh tranh) or (thanh trung)) ((cua thong) OR (cua thuong)) cong tac toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu xanh - ((canh tranh) OR (thanh trung)) ((cua thong) OR (cua thuong)) cong tac toan cau*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu xanh - ((canh tranh) or (thanh trung)) ((cua thong) OR (cua thuong)) cong tac toan cau*".