Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
thanh dung » thanh duong, thanh hung, hanh dung
thanh tung » thanh cong
luong manh » luong thanh, duong minh, luong van
duong manh » duong van
doi chieu » doc hieu, doi chi, ho chieu
nam nhung » cam nhung, tham nhung, va nhung
toan tap » toan ban

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: doi chieu sach - ((thanh dung) OR (thanh tung)) nam nhung ((luong manh) OR (duong manh)) toan tap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu sach - ((thanh dung) OR (thanh tung)) nam nhung ((luong manh) or (duong manh)) toan tap~".
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - ((thanh dung) OR (thanh tung)) nam nhung ((luong manh) or (duong manh)) toan tap*.