Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
hanh vai » hanh vi, hanh va, hanh tai
vai cua » dai cua, hai cua, lai cua
truc va » thuc va, thuc vat, trung va
sach ly » sach y, sach ty, sach hay
van cam » van nam, van lam, van cau
sach lo » sach dao, sach doi, sach hoi
cua tre » cua te, cuu tre, cua triet
xuc va » duc va, tuc va, luc va
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuat ((sach ly) OR (sach lo)) nang x hoi. hieu van cam ((xuc va) or (truc va)) hanh vai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat ((sach ly) OR (sach lo)) nang x hoi. hieu van cam ((xuc va) OR (truc va)) hanh vai cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat ((sach ly) OR (sach lo)) nang x hoi. hieu van cam ((xuc va) or (truc va)) hanh vai cua tre*".