Perhaps you should try some spelling variations:
chieu tinh » lieu tinh, chau tinh, kieu tinh
dung cuong » dung luong, dang cuong, dung huong
cuong dung » tuong duong, ung dung, thong dung
dung cong » dung trong
cong bai » cuong bai, cong hai, cung bai
bai toan » bai tap
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 ((chieu tinh) or (trieu tinh)) - trinh dung cuong dung cong bai toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu tinh) OR (trieu tinh)) - trinh dung cuong dung cong bai toan ban.
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu tinh) or (trieu tinh)) - trinh dung cuong dung cong bai toan ban*.