Perhaps you should try some spelling variations:
doanh luan » doanh nhan
ho chiet » ho thiet, hoc thiet, hoa thiet
ho chieu » theo chieu, hoc thieu, doi chieu
ban cong » bang cong, van cong, phan cong
cong dan » cong san, cong tan, huong dan
dan chan » dan gian, dan ca, van chat
chan cao » chan cho, chat cao, chay cao

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: ((ho chiet) OR (ho chieu)) tach - hanh ((doanh cua) OR (doanh luan)) ban cong dan chan cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chiet) or (ho chieu)) tach - hanh ((doanh cua) OR (doanh luan)) ban cong dan chan cao~".
• Adding a wildcard symbol may retrieve word variants: ((ho chiet) or (ho chieu)) tach - hanh ((doanh cua) OR (doanh luan)) ban cong dan chan cao*.