Perhaps you should try some spelling variations:
sach ly » sach y, sach lo, sach ty
hieu ve » hieu va, hieu van
ve chat » va chat, van chat
sach tu » sach thu, cach tu, sach ty
cua tre » cua te, cuu tre, cua triet
tuu va » tu va, tru va, thu va
cuu va » cuu van, cuu ve
vi cua » vai cua, di cua
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 tu)) nang x hoi. hieu ve chat ((tuu va) OR (cuu va)) hanh vi cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat ((sach ly) or (sach tu)) nang x hoi. hieu ve chat ((tuu va) OR (cuu va)) hanh vi cua tre~".
• Adding a wildcard symbol may retrieve word variants: thuat ((sach ly) or (sach tu)) nang x hoi. hieu ve chat ((tuu va) OR (cuu va)) hanh vi cua tre*.