Perhaps you should try some spelling variations:
thieu sach » chieu sach, thien hach, hieu cach
nhung cong » dung cong, thong cong, hang cong
doanh khi » doanh khoa, doanh nghi, doanh tai
cua nhung » va nhung
cong toan » cong tan, cong hoan, cong tuan
toan ban » van ban
khi cua » chi cua, thai cua
ban dan » ban hang, ban hanh, ban quan

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc thieu sach - doanh khi cua nhung cong toan ban dan~.
• Adding a wildcard symbol may retrieve word variants: toc thieu sach - doanh khi cua nhung cong toan ban dan*.