Perhaps you should try some spelling variations:
truong quann » truong quang, trong quan, trong quang
truong quan » trong quan, thong quan, luong quan
chieu xanh » chieu sach, chieu sang, chieu tinh
doi chieu » doc hieu, doi chi, ho chieu
dung cong » dung trong
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
toan cau » 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 ((truong quan) or (truong quann)) dung cong tac toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu xanh - thanh ((truong quan) OR (truong quann)) dung cong tac toan cau.
• Adding a wildcard symbol may retrieve word variants: doi chieu xanh - thanh ((truong quan) or (truong quann)) dung cong tac toan cau*.