Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu xanh » chieu sach, chieu sang, chieu tinh
doc chieu » doc hieu, doi chieu, toc thieu
trung xay » trong xay, trung gay, trung tam
cong tan » cong san, cong thanh, cong ty
cong tac » cong ty
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: doc chieu xanh - thanh trung xay dung ((cong tan) or (cong tac)) toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc chieu xanh - thanh trung xay dung ((cong tan) OR (cong tac)) toan cao.
• Adding a wildcard symbol may retrieve word variants: doc chieu xanh - thanh trung xay dung ((cong tan) or (cong tac)) toan cao*.