Perhaps you should try some spelling variations:
thieu nien » thien nhien
nien bach » vien bach, dien sach, mien bac
thanh di » thanh doi, thanh de, thanh do
toc sach » hoc sach, doc sach, thuoc sach
va thanh » gia thanh, ban thanh, va tinh
bach xuc » bach tuoc, bach xuan, bach hue
sang mai » sang ma, sang tai, lang mai
hoc cac » hoc cao
mai hoi » mai khoi, dai hoi, lai hoi
ky sang » ky nang, ky dang, ky tang
cua tre » cua te, cuu tre, cua triet
xuc va » duc va, tuc va, luc va
di cua » dai cua, doi cua, de 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 cac) or (toc sach)) ky sang mai hoi. thieu nien bach xuc va thanh di cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc cac) OR (toc sach)) ky sang mai hoi. thieu nien bach xuc va thanh di cua tre.
• Adding a wildcard symbol may retrieve word variants: ((hoc cac) or (toc sach)) ky sang mai hoi. thieu nien bach xuc va thanh di cua tre*.