Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
hanh tai » thanh tai, hang tai, han tai
su sach » so sach, vu sach
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
van hac » van hoc, van ha, van hai
truc va » thuc va, thuc vat, trung va
tai cua » thai cua, tai cuc, tri cua
cua tre » cua te, cuu tre, cua triet
tuc va » thuc va, tuc xa, duc va

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ky nang xa hoi. hieu van hac ((tuc va) OR (truc va)) hanh tai cua tre~".
• Adding a wildcard symbol may retrieve word variants: su sach ky nang xa hoi. hieu van hac ((tuc va) OR (truc va)) hanh tai cua tre*.