Perhaps you should try some spelling variations:
hieu nganh » vien nganh, hiem ngan, hieu manh
chieu sach » chinh sach, chiet tach, chieu sang
hanh tinh » hanh trinh, nhanh tinh, thanh tinh
cong cong » cong dong, trong cong, dung cong
cong doan » cong dan, cong hoan, dong doanh
tinh cua » trinh cua, sinh cua, tinh chat
doan van » doan va, hoang van, luan van

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 ((hieu nganh) OR (chieu sach)) - hanh tinh cua cong cong doan van ban~.
• Adding a wildcard symbol may retrieve word variants: ho ((hieu nganh) or (chieu sach)) - hanh tinh cua cong cong doan van ban*.