Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
hanh dinh » thanh dinh, hinh dinh, hanh tinh
cuu trong » cuu tong, chu trong, luu trong
dinh cuu » dinh chi
cong tap » cuong tap, cong tac, cong tan
tap toan » tap doan, tap quan, bai 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: hoc ((dieu hanh) or (chieu sang)) - hanh dinh cuu trong cong tap toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((dieu hanh) OR (chieu sang)) - hanh dinh cuu trong cong tap toan ban.
• Adding a wildcard symbol may retrieve word variants: hoc ((dieu hanh) or (chieu sang)) - hanh dinh cuu trong cong tap toan ban*.