Perhaps you should try some spelling variations:
thieu hach » thien hach, chieu sach, hieu cach
canh doanh » hanh doanh, chinh doanh, doanh doanh
hoc thieu » toc thieu, hoc hien
doanh cua » doanh luan
cua nhung » va nhung
cong dan » cong tan, huong dan, cong dong
cong san » cong tac
chan cau » phan cau, can cau, chinh cau

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 hach - canh doanh cua nhung ((cong dan) OR (cong san)) chan cau~".
• Adding a wildcard symbol may retrieve word variants: hoc thieu hach - canh doanh cua nhung ((cong dan) OR (cong san)) chan cau*.