Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
hanh dai » hanh tai, hanh dao, vanh dai
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
van dau » van dao, phan dau
truc va » thuc va, trung va
dai cuu » dai cua, dai huu
cuu tre » cua tre, cau tren, cau treo

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

• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky nang xa hoi. hieu van dau ((truc va) OR (thuc vat)) hanh dai cuu tre~.
• Adding a wildcard symbol may retrieve word variants: tu sach ky nang xa hoi. hieu van dau ((truc va) or (thuc vat)) hanh dai cuu tre*.