Perhaps you should try some spelling variations:
trung thanh » truong thanh
chieu xanh » chieu sach, chieu sang, chieu tinh
trung chan » trung phan, trong chan, trung can
doi chieu » doc hieu, doi chi, ho chieu
dung cong » dung trong
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van toan
toan ban » van ban

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 chan) or (trung thanh)) dung cong tan toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu xanh - thanh ((trung chan) OR (trung thanh)) dung cong tan toan ban.
• Adding a wildcard symbol may retrieve word variants: doi chieu xanh - thanh ((trung chan) or (trung thanh)) dung cong tan toan ban*.