Perhaps you should try some spelling variations:
cong thanh » dong thanh, cong trinh, truong thanh
chieu xanh » chieu sach, chieu sang, chieu tinh
toc chieu » toc thieu, doc hieu, hoc thieu
nhan dang » nhan dan, phan dang, tran dang
cua dung » cua dong, qua dung, cua rung
cua dang » cua cong, cua ban
cong tan » cong tac, cong san, cong ty
tran cau » tran chau, toan cau, ran cau

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 - nhan dang ((cua dung) or (cua dang)) ((cong thanh) or (cong tan)) tran cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc chieu xanh - nhan dang ((cua dung) OR (cua dang)) ((cong thanh) OR (cong tan)) tran cau.
• Adding a wildcard symbol may retrieve word variants: toc chieu xanh - nhan dang ((cua dung) or (cua dang)) ((cong thanh) or (cong tan)) tran cau*.