Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
cuong bang » muong bang, tuong bang, phuong bang
hoc chieu » hoc thieu, ho chieu, hoc hien
trinh cua » trinh luat, trinh quan, trinh luan
cong bang » dong bang, hong bang, cong lang
tinh cua » sinh cua, tinh chat, tranh cua
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 sach - hanh ((trinh cua) OR (tinh cua)) nhung ((cong bang) or (cuong bang)) toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu sach - hanh ((trinh cua) OR (tinh cua)) nhung ((cong bang) OR (cuong bang)) toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc chieu sach - hanh ((trinh cua) OR (tinh cua)) nhung ((cong bang) or (cuong bang)) toan ban".
• Adding a wildcard symbol may retrieve word variants: hoc chieu sach - hanh ((trinh cua) OR (tinh cua)) nhung ((cong bang) or (cuong bang)) toan ban*.