Perhaps you should try some spelling variations:
doanh doanh » toan doanh, doanh hoan, doanh thanh
theo chieu » theo tieu, ho chieu, theo chu
chieu sach » chinh sach, chiet tach, chieu sang
hanh doanh » hang doanh, chinh doanh, kinh doanh
cua dung » cua dang, cua dong, qua dung
cong dan » cong san, huong dan, cong dong
cong tan » cong tac, cong san, cong thanh
chay cao » cay cao, chat cao, nha cao

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo chieu sach - ((hanh doanh) OR (doanh doanh)) cua dung ((cong dan) or (cong tan)) chay cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu sach - ((hanh doanh) OR (doanh doanh)) cua dung ((cong dan) OR (cong tan)) chay cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chieu sach - ((hanh doanh) OR (doanh doanh)) cua dung ((cong dan) or (cong tan)) chay cao".
• Adding a wildcard symbol may retrieve word variants: theo chieu sach - ((hanh doanh) OR (doanh doanh)) cua dung ((cong dan) or (cong tan)) chay cao*.