Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
thanh tung » thanh cong
doi chieu » doc hieu, doi chi, ho chieu
tung cao » nung cao, truong cao, trung cap
cao dong » cao dang, lao dong, cao cong
cong tan » cong san, cong thanh, cong ty
cong tac » cong ty
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 - thanh tung cao dong ((cong tan) or (cong tac)) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu xanh - thanh tung cao dong ((cong tan) OR (cong tac)) toan cau.
• Adding a wildcard symbol may retrieve word variants: doi chieu xanh - thanh tung cao dong ((cong tan) or (cong tac)) toan cau*.