Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
doanh luan » doanh nhan
hoc chieu » hoc thieu, ho chieu, hoc hien
tranh cua » doanh cua, manh cua
cong cong » cong dong, trong cong, dung cong
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 chieu sach - canh ((tranh cua) or (doanh luan)) cong cong tap toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu sach - canh ((tranh cua) OR (doanh luan)) cong cong tap toan ban*.