Perhaps you should try some spelling variations:
thuc dayn » thuc dan, thuc van, tuc dan
toc sach » hoc sach, doc sach, thuoc sach
thuc day » thuc dan, thuc vat
hanh vai » hanh vi, hanh va, hanh tai
nang xa » nang x, lang xa, nang ma
vai cua » dai cua, hai cua, lai cua
cua tre » cua te, cuu tre, cua triet
y nang » ky nang, ly nang, v nang
va cao » va cac, va co, va dao

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc sach y nang xa hoi. lieu va cao ((thuc dayn) or (thuc day)) hanh vai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sach y nang xa hoi. lieu va cao ((thuc dayn) OR (thuc day)) hanh vai cua tre.
• Adding a wildcard symbol may retrieve word variants: toc sach y nang xa hoi. lieu va cao ((thuc dayn) or (thuc day)) hanh vai cua tre*.