Perhaps you should try some spelling variations:
chinh doanh » kinh doanh
thieu sach » chieu sach, thien hach, hieu cach
khong cong » thong cong, khong cang, chong cong
hoc thieu » toc thieu, hoc hien
doanh cua » doanh luan
cua khong » hua khong, cua phuong, cua thuong
thanh ban » thanh van, thanh bac, thanh bai
cong dan » cong san, cong tan, huong dan

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu sach - chinh doanh cua khong cong dan ((thanh ban) OR (thanh san))~".
• Adding a wildcard symbol may retrieve word variants: hoc thieu sach - chinh doanh cua khong cong dan ((thanh ban) OR (thanh san))*.