Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
cong tuong » cong thuong, cong truong, cong trong
hoc chieu » hoc thieu, ho chieu, hoc hien
hanh dong » anh dong, ha dong
tuong tap » tuong tac, tong tap, cuong tap
dong cua » dung cua, cong cua, huong cua
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 chieu sach - hanh dong cua cong tuong tap toan ban~.
• Adding a wildcard symbol may retrieve word variants: hoc chieu sach - hanh dong cua cong tuong tap toan ban*.