Perhaps you should try some spelling variations:
tieu sach » chieu sach, dien sach, te sach
canh manh » lanh manh, canh tranh, cach mang
dang cong » dung cong
manh toan » thanh toan, anh tuan
manh cua » doanh cua, ban cua
cua dang » cua cong, cua ban
dan toan » van toan, dan than, xuan toan

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo tieu sach - canh manh cua dang cong ((dan toan) or (((manh toan) or (tinh toan)))) tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu sach - canh manh cua dang cong ((dan toan) OR (((manh toan) OR (tinh toan)))) tap.
• Adding a wildcard symbol may retrieve word variants: theo tieu sach - canh manh cua dang cong ((dan toan) or (((manh toan) or (tinh toan)))) tap*.