Perhaps you should try some spelling variations:
cac thuc » cach thuc, cac thu, can thuc
hanh vai » hanh vi, hanh va, hanh tai
te sach » toc sach
thuc va » thuc vat, thuc dan, thuc day
va hanh » van hanh, va thanh, va danh
vai cua » dai cua, hai cua, lai cua
cua tre » cua te, cuu tre, cua triet
sach 2 » sach y
2 nang » v nang
x hoi » xa hoi, o hoi, 5 hoi

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach 2 nang ((x hoi) or (x ho)). lieu va cac thuc va hanh vai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach 2 nang ((x hoi) OR (x ho)). lieu va cac thuc va hanh vai cua tre.
• Adding a wildcard symbol may retrieve word variants: te sach 2 nang ((x hoi) or (x ho)). lieu va cac thuc va hanh vai cua tre*.