Perhaps you should try some spelling variations:
cho chinh » chon chinh, che chinh, cuoc chinh
hanh phan » thanh phan, hanh han, hanh nhan
dung cong » dung trong
tran manh » tran minh, tran thanh, tran van
anh phan » anh nhan, anh han, anh phap
cong tac » cong ty
va dung » van dung, va duong, vat dung
than ma » than man, than va, khan ma

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: cho chinh sach - ((hanh phan) OR (anh phan)) va dung cong tac ((tran manh) OR (than ma))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "cho chinh sach - ((hanh phan) OR (anh phan)) va dung cong tac ((tran manh) or (than ma))~".
• Adding a wildcard symbol may retrieve word variants: cho chinh sach - ((hanh phan) OR (anh phan)) va dung cong tac ((tran manh) or (than ma))*.