Perhaps you should try some spelling variations:
chiet tach » chieu sach
nhung cong » dung cong, thong cong, hang cong
cong thang » cong thanh, cang thang, cong thong
thang hang » hang hang, thanh hang, thanh hoang
hoc chiet » hoc thiet, hoc nhiet, hoc hien
cong luan » tong luan, cong tuan, dong luan
hang dau » hang va, hang tai

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: hoc chiet tach - thanh ((cong luan) or (dung luan)) nhung cong thang hang dau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chiet tach - thanh ((cong luan) OR (dung luan)) nhung cong thang hang dau.
• Adding a wildcard symbol may retrieve word variants: hoc chiet tach - thanh ((cong luan) or (dung luan)) nhung cong thang hang dau*.