Perhaps you should try some spelling variations:
nham thuc » nhan thuc, nam thuc, nham thu
hanh vai » hanh vi, hanh va, hanh tai
hoc sach » hoc sinh, hoc cac, hoc anh
so sach » bo sach, co sach
vai cua » dai cua, hai cua, lai cua
va hanh » van hanh, va thanh, va danh
thuc va » thuc vat, thuc dan, thuc day
va nham » va cham, va tham, va nha
cua tre » cua te, cuu tre, cua triet
nang ma » tang ma, sang ma, nang cao
so sanh » do sanh
ma hoi » mai hoi, xa hoi, ma hoa

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) OR (so sanh))) or (hoc sach)) ky nang ma hoi. lieu va nham thuc va hanh vai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((so sach) OR (so sanh))) OR (hoc sach)) ky nang ma hoi. lieu va nham thuc va hanh vai cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((so sach) OR (so sanh))) or (hoc sach)) ky nang ma hoi. lieu va nham thuc va hanh vai cua tre*".