Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
tieu sach » chieu sach, dien sach, te sach
ganh nang » anh nang, nganh nong, van nang
cua nhung » va nhung
manh toan » thanh toan, anh tuan, tinh toan
anh dong » anh huong, anh son
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 - ((ganh nang) or (anh dong)) cua nhung cong ((dan toan) or (manh toan)) ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu sach - ((ganh nang) OR (anh dong)) cua nhung cong ((dan toan) OR (manh toan)) ban.
• Adding a wildcard symbol may retrieve word variants: theo tieu sach - ((ganh nang) or (anh dong)) cua nhung cong ((dan toan) or (manh toan)) ban*.