Perhaps you should try some spelling variations:
thieu sach » chieu sach, thien hach, hieu cach
hoc thieu » toc thieu, hoc hien
cap hoang » cam hoang, cau hoang, van hoang
cap bang » cao bang, can bang, lap bang
cong san » cong tac
than cau » toan cau, phan cau, than cap
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 thieu sach - thanh cong ((cap hoang) or (cap bang)) cong san ((than cau) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu sach - thanh cong ((cap hoang) OR (cap bang)) cong san ((than cau) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: hoc thieu sach - thanh cong ((cap hoang) or (cap bang)) cong san ((than cau) or (toan ban))*.