Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu xanh » chieu sach, chieu sang, chieu tinh
doi chieu » doc hieu, doi chi, ho chieu
trung vat » trung va, trung van, trong vat
cong vang » cong lang, cong quang, cong ngang
vat dung » van dung, va dung, viet dung
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: doi chieu xanh - thanh trung vat dung ((cong vang) or (((cong san) or (cong tac)))) toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu xanh - thanh trung vat dung ((cong vang) OR (((cong san) OR (cong tac)))) toan cao.
• Adding a wildcard symbol may retrieve word variants: doi chieu xanh - thanh trung vat dung ((cong vang) or (((cong san) or (cong tac)))) toan cao*.