Perhaps you should try some spelling variations:
hanh vai » hanh vi, hanh va, hanh tai
so sach » so sanh, bo sach, co sach
ve pham » vi pham, ve phan, ve phat
vai cua » dai cua, hai cua, lai cua
va hanh » van hanh, va thanh, va danh
chuc va » thuc va, thuc vat
sach ki » sach kinh, sach bai, sach kem
lai hoi » dai hoi, lai hoa, lai roi
mai hoi » mai khoi, dai hoi, mai doi
ki nang » ky nang
v pham » vi pham, d pham
cua te » cua tu

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: so sach ki nang ((mai hoi) OR (lai hoi)). hieu ((ve pham) OR (v pham)) chuc va hanh vai cua te~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sach ki nang ((mai hoi) OR (lai hoi)). hieu ((ve pham) or (v pham)) chuc va hanh vai cua te~".
• Adding a wildcard symbol may retrieve word variants: so sach ki nang ((mai hoi) OR (lai hoi)). hieu ((ve pham) or (v pham)) chuc va hanh vai cua te*.