Perhaps you should try some spelling variations:
truong quan » thong quan, luong quan, truong van
trong quan » thong quan, tong quan, thong quang
cong cong » cong dong, trong cong, dung cong
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) or (theo tieu)) sach - thanh ((truong quan) OR (trong quan)) cong cong tac toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (theo tieu)) sach - thanh ((truong quan) OR (trong quan)) cong cong tac toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) or (theo tieu)) sach - thanh ((truong quan) OR (trong quan)) cong cong tac toan cao".
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (theo tieu)) sach - thanh ((truong quan) OR (trong quan)) cong cong tac toan cao*.