Perhaps you should try some spelling variations:
thieu sach » chieu sach, thien hach, hieu cach
dan phuong » doan phuong, van phuong, lan phuong
doanh phan » doanh nhan, doan phan, doanh thanh
cong dan » cong san, cong tan, huong dan
dan phan » doan phan, dan chan, van phan
dan dan » dang dan, ban dan, dao dan

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 - thanh cong dan dan phuong ((dan phan) or (doanh phan)) lap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc thieu sach - thanh cong dan dan phuong ((dan phan) OR (doanh phan)) lap*.