Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu xanh
chieu sang » chieu xanh, hieu lang, nhieu tang
nhanh mang » nhanh lang, hanh mang, nhanh quang
cong manh » duong manh, cong thanh, hoang manh
cong danh » cuong danh, cong dan, cong thanh
mang cua » manh cua, dung cua, ban cua
cua tong » cua cong, cua dong, cua nong
toan ban » van 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: cho ((chieu sach) OR (chieu sang)) - nhanh mang cua tong ((cong manh) OR (cong danh)) toan ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "cho ((chieu sach) or (chieu sang)) - nhanh mang cua tong ((cong manh) OR (cong danh)) toan ban~".
• Adding a wildcard symbol may retrieve word variants: cho ((chieu sach) or (chieu sang)) - nhanh mang cua tong ((cong manh) OR (cong danh)) toan ban*.