Perhaps you should try some spelling variations:
hanh vai » hanh va, hanh tai, hanh van
chat tuu » chat huu, chat cua, chat xuc
sach ly » sach y, sach lo, sach hay
hieu ve » hieu va, hieu van
ve chat » va chat, van chat
sach ty » sach y, sach tu, sach thu
cua tre » cua te, cuu tre, cua triet
tuu va » tu va, cuu va, tru va
x hoi » xa hoi, o hoi, x ho

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: thuat ((sach ly) OR (sach ty)) nang x hoi. hieu ve chat tuu va ((hanh vai) OR (hanh vi)) cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat ((sach ly) or (sach ty)) nang x hoi. hieu ve chat tuu va ((hanh vai) OR (hanh vi)) cua tre~".
• Adding a wildcard symbol may retrieve word variants: thuat ((sach ly) or (sach ty)) nang x hoi. hieu ve chat tuu va ((hanh vai) OR (hanh vi)) cua tre*.