Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
trung va » truong va, trang va, trung ha
nang xa » nang x, lang xa, nang ma
van cac » van hac, van cau, van bac
truc va » thuc va, thuc vat
cua tre » cua te, cuu tre, cua triet
su sac » su sach, su cac, su xac
sac ky » cac ky, sai ky
vi cua » vai cua, di cua

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 sac ky nang xa hoi. hieu van cac ((truc va) OR (trung va)) hanh vi cua tre~".
• Adding a wildcard symbol may retrieve word variants: su sac ky nang xa hoi. hieu van cac ((truc va) OR (trung va)) hanh vi cua tre*.