Perhaps you should try some spelling variations:
thieu sach » chieu sach, thien hach, hieu cach
hoc thieu » toc thieu, hoc hien
hang mang » hang hang, hang mong, hanh mang
cua nhung » va nhung
cua hang » cua dang, cua cong, cua ban
cong dan » cong san, cong tan, huong dan
dan than » dan chan, ban than, van than
than cap » khan cap, thanh lap, thanh cac

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 - hang mang ((cua hang) OR (cua nhung)) cong dan than cap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu sach - hang mang ((cua hang) OR (cua nhung)) cong dan than cap".
• Adding a wildcard symbol may retrieve word variants: hoc thieu sach - hang mang ((cua hang) OR (cua nhung)) cong dan than cap*.