Perhaps you should try some spelling variations:
thien chinh » tien thinh, thien chien, thi chinh
tranh cua » manh cua
doanh cua » doanh luan
dang cong » dung cong
cong san » cong tac
san than » sang than, san thanh, ban than
than man » than ma, thanh san, tran manh

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

• Performing a fuzzy search may retrieve terms with similar spellings: thien chinh sach - hanh ((tranh cua) or (doanh cua)) dang cong san than man~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thien chinh sach - hanh ((tranh cua) OR (doanh cua)) dang cong san than man.
• Adding a wildcard symbol may retrieve word variants: thien chinh sach - hanh ((tranh cua) or (doanh cua)) dang cong san than man*.