Perhaps you should try some spelling variations:
thanh trung » thanh tung
chon chinh » cho chinh, chinh chinh, thong chinh
thon chinh » thong chinh, thuong chinh, thien chinh
tong cong » trong cong, cong cong, dung cong
trung va » truong va, trang va, trung ha
cong dan » cong san, cong tan, huong dan
va tong » va thong, va tuong, va trong
dan van » dang van, doan van, dao van

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

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