Perhaps you should try some spelling variations:
thuoc sach » nuoc sach, thuat sach, thuoc sinh
thieu nien » thien nhien
nien bach » vien bach, dien sach, mien bac
hoc sach » hoc sinh, hoc cac, hoc anh
sang lai » sang tai, sang lap, mang lai
bach xuc » bach tuoc, bach xuan, bach hue
ky sang » ky nang, ky dang, ky tang
lai hoi » dai hoi, lai hoa, lai roi
va hanh » van hanh, va thanh, va danh
cua tre » cua te, cuu tre, cua triet
xuc va » duc va, tuc va, luc va
vi cua » vai cua, di cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((hoc sach) or (thuoc sach)) ky sang lai hoi. thieu nien bach xuc va hanh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc sach) OR (thuoc sach)) ky sang lai hoi. thieu nien bach xuc va hanh vi cua tre.
• Adding a wildcard symbol may retrieve word variants: ((hoc sach) or (thuoc sach)) ky sang lai hoi. thieu nien bach xuc va hanh vi cua tre*.