Perhaps you should try some spelling variations:
thuong cong » thong cong, thuong con, thuong dong
chieu xanh » chieu sach, chieu sang, chieu tinh
trong quan » thong quan, tong quan, thong quang
truong cao » truong dai
ho chieu » theo chieu, hoc thieu, doi chieu
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
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 - hanh ((trong quan) or (truong cao)) thuong cong tac toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu xanh - hanh ((trong quan) OR (truong cao)) thuong cong tac toan cao.
• Adding a wildcard symbol may retrieve word variants: ho chieu xanh - hanh ((trong quan) or (truong cao)) thuong cong tac toan cao*.