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

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sach ki nang mai hoi. hieu ((ve pham) or (((v pham) OR (vi pham)))) chuc va hanh vai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach ki nang mai hoi. hieu ((ve pham) OR (((v pham) OR (vi 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. hieu ((ve pham) or (((v pham) OR (vi pham)))) chuc va hanh vai cua te*".