Perhaps you should try some spelling variations:
thieu sach » chieu sach, thien hach, hieu cach
cang thang » cong thanh, dang thanh
hoc thieu » toc thieu, hoc hien
chua dong » ha dong, huy dong, hoa dong
cua dong » cua cong, cua dang, cua nong
ban cau » bang cau, ban can, ban dau
van cau » van dau, van hau, van chat

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 - canh tranh ((chua dong) OR (cua dong)) cang thang ((ban cau) or (van cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu sach - canh tranh ((chua dong) OR (cua dong)) cang thang ((ban cau) OR (van cau)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu sach - canh tranh ((chua dong) OR (cua dong)) cang thang ((ban cau) or (van cau))".
• Adding a wildcard symbol may retrieve word variants: hoc thieu sach - canh tranh ((chua dong) OR (cua dong)) cang thang ((ban cau) or (van cau))*.