Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
chieu sach » chiet tach, chieu sang, chieu xanh
cua nhung » va nhung
hanh han » hanh nhan, hanh phan, hanh san
cong tac » cong ty
toan cao » toan tap
toan ban » van ban
han cua » hang cua, nhan cua, than cua

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 ((chieu sach) OR (chinh sach)) - hanh han cua nhung cong tac ((toan cao) OR (toan ban))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu sach) OR (chinh sach)) - hanh han cua nhung cong tac ((toan cao) or (toan ban))~".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sach) OR (chinh sach)) - hanh han cua nhung cong tac ((toan cao) or (toan ban))*.