Perhaps you should try some spelling variations:
thieu nien » thien nhien
thu sach » tu sach, thuat sach, thuoc sach
cay phoi » cap phoi, tay hoi, cay cho
nien cap » nien lap, vien cac, vien cao
cap nuoc » dat nuoc
hanh dai » hanh tai, hanh dao, vanh dai
sach ty » sach y, sach tu, sach thu
ty dang » ty xang, ky dang, ty hang
xay hoi » xa hoi, tay hoi, gay thoi
va hanh » van hanh, va thanh, va danh
cua tre » cua te, cuu tre, cua triet

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu sach ty dang ((xay hoi) OR (cay phoi)). thieu nien cap nuoc va hanh dai cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach ty dang ((xay hoi) OR (cay phoi)). thieu nien cap nuoc va hanh dai cua tre".
• Adding a wildcard symbol may retrieve word variants: thu sach ty dang ((xay hoi) OR (cay phoi)). thieu nien cap nuoc va hanh dai cua tre*.