Perhaps you should try some spelling variations:
thanh tung » thanh cong
che chinh » te chinh
va trong » va truong, va thong, va tuong
cong san » cong tac
san than » sang than, san thanh, ban than
than ban » thanh ban, toan ban, than man
va tong » va thong, va tuong, va cong

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

• Performing a fuzzy search may retrieve terms with similar spellings: che chinh sach - thanh tung ((va tong) or (va trong)) cong san than ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: che chinh sach - thanh tung ((va tong) OR (va trong)) cong san than ban.
• Adding a wildcard symbol may retrieve word variants: che chinh sach - thanh tung ((va tong) or (va trong)) cong san than ban*.