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