Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
hanh trinh » hanh chinh
thong cong » trong cong, tong cong, thong thong
toc chieu » toc thieu, doc hieu, hoc thieu
cua thong » cua thuong, cua khong, cua tong
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van 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: toc chieu xanh - ((hanh trinh) or (canh tranh)) cua thong cong tan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc chieu xanh - ((hanh trinh) OR (canh tranh)) cua thong cong tan toan cau.
• Adding a wildcard symbol may retrieve word variants: toc chieu xanh - ((hanh trinh) or (canh tranh)) cua thong cong tan toan cau*.