Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
thanh tung » thanh cong
nhung cong » dung cong, thong cong, hang cong
hieu manh » chieu xanh, hieu nganh, dieu hanh
ve nhung » va nhung, tu nhung
tung ve » dung ve, tung le, tung va
dan bao » van bao, da bao, dan ba

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: ho ((hieu manh) OR (chieu sach)) - thanh tung ve nhung cong ((dan bao) OR (dam bao)) cap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((hieu manh) or (chieu sach)) - thanh tung ve nhung cong ((dan bao) OR (dam bao)) cap~".
• Adding a wildcard symbol may retrieve word variants: ho ((hieu manh) or (chieu sach)) - thanh tung ve nhung cong ((dan bao) OR (dam bao)) cap*.