Perhaps you should try some spelling variations:
danh dai » danh dau, danh di, danh sai
so sach » so sanh, bo sach, co sach
sach ty » sach y, sach tu, sach thu
ty nang » ky nang, ty xang, ty hang
ve pham » vi pham, v pham, ve phat
ve phan » va phan, ke phan, ve phat
va danh » va dinh, va dan, va hanh
cua te » cua tu
x hoi » xa hoi, o hoi, x ho

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "so sach ty nang x hoi. hieu ((ve pham) OR (ve phan)) duc va danh dai cua te~".
• Adding a wildcard symbol may retrieve word variants: so sach ty nang x hoi. hieu ((ve pham) OR (ve phan)) duc va danh dai cua te*.