Perhaps you should try some spelling variations:
hanh trung » thanh trung, hanh trang, manh trung
dong doanh » dung doanh, trong doanh, doanh doanh
hoc chinh » hoan chinh, hoc sinh, hoc kinh
trung cua » truong cua, trung tuan, trung cap
cua nhung » va nhung
cong doan » cong dan, cong san, cong dong
cong hoan » cong hoa, dong hoa, cong san

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc chinh sach - hanh trung cua nhung ((((cong doan) OR (cong hoan))) or (dong doanh)) van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chinh sach - hanh trung cua nhung ((((cong doan) OR (cong hoan))) OR (dong doanh)) van ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc chinh sach - hanh trung cua nhung ((((cong doan) OR (cong hoan))) or (dong doanh)) van ban".
• Adding a wildcard symbol may retrieve word variants: hoc chinh sach - hanh trung cua nhung ((((cong doan) OR (cong hoan))) or (dong doanh)) van ban*.