Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hanh dung » thanh dung, anh dung, hanh dong
cua nhung » va nhung
ho chieu » theo chieu, hoc thieu, doi chieu
dung cua » dung luan, dung cho
cong tac » cong ty
phap cau » phan cau, phap ca, phap cac
ho hieu » hoi hieu, nho hieu, co hieu
pha cau » phan cau, pha cac, phan cac

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) OR (ho chieu)) quang - hanh dung cua nhung cong tac ((pha cau) OR (phap cau))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho hieu) or (ho chieu)) quang - hanh dung cua nhung cong tac ((pha cau) OR (phap cau))~".
• Adding a wildcard symbol may retrieve word variants: ((ho hieu) or (ho chieu)) quang - hanh dung cua nhung cong tac ((pha cau) OR (phap cau))*.