Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
chiet tach » chieu sach
hinh dinh » binh dinh, trinh dinh, hinh anh
cong cong » trong cong, dung cong, dang cong
dinh cua » dinh cuu, sinh cua, dinh cu
tac toan » tap toan, tam toan, hach 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: ho ((chieu xanh) or (chiet tach)) - hinh dinh cua ((cong cong) OR (cong dong)) tac toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu xanh) OR (chiet tach)) - hinh dinh cua ((cong cong) OR (cong dong)) tac toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu xanh) or (chiet tach)) - hinh dinh cua ((cong cong) OR (cong dong)) tac toan ban".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu xanh) or (chiet tach)) - hinh dinh cua ((cong cong) OR (cong dong)) tac toan ban*.