Perhaps you should try some spelling variations:
doanh doanh » toan doanh, doanh hoan, doanh thanh
thieu sach » chieu sach, thien hach, hieu cach
hanh doanh » hang doanh, chinh doanh, kinh doanh
nhung cong » dung cong, thong cong, hang cong
hoc thieu » toc thieu, hoc hien
cua nhung » va nhung
dan toan » van toan, dan than, manh toan
van tuan » van quan, van ban, anh tuan

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

• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu sach - ((hanh doanh) OR (doanh doanh)) cua nhung cong ((dan toan) OR (van tuan)) cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu sach - ((hanh doanh) OR (doanh doanh)) cua nhung cong ((dan toan) or (van tuan)) cau~".
• Adding a wildcard symbol may retrieve word variants: hoc thieu sach - ((hanh doanh) OR (doanh doanh)) cua nhung cong ((dan toan) or (van tuan)) cau*.