Perhaps you should try some spelling variations:
chon chinh » thon chinh, chinh chinh, thong chinh
cho chinh » che chinh, cuoc chinh, thon chinh
tan thanh » tran thanh, tang thanh, toan thanh
thanh cau » thanh chau, thanh mau, nhanh cau
cong tan » cong tac, cong san, cong thanh
va dang » van dang, va nang, da dang
va lang » va nang, hoa lang

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) OR (chon chinh)) sach - canh tranh ((va dang) OR (va lang)) cong tan thanh cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((cho chinh) or (chon chinh)) sach - canh tranh ((va dang) OR (va lang)) cong tan thanh cau~".
• Adding a wildcard symbol may retrieve word variants: ((cho chinh) or (chon chinh)) sach - canh tranh ((va dang) OR (va lang)) cong tan thanh cau*.