Perhaps you should try some spelling variations:
doanh doanh » toan doanh, doanh hoan, doanh thanh
theo chieu » theo tieu, ho chieu, theo chu
nhung cong » dung cong, thong cong, hang cong
hoc chieu » hoc thieu, ho chieu, hoc hien
doanh cua » doanh luan
cua nhung » va nhung
cong tac » cong ty
tac than » tac thanh, tam than, tac nhan
than tap » toan tap, han tap, phan tap

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 chieu) OR (theo chieu)) sach - doanh doanh cua nhung cong tac than tap~.
• Adding a wildcard symbol may retrieve word variants: ((hoc chieu) or (theo chieu)) sach - doanh doanh cua nhung cong tac than tap*.