Perhaps you should try some spelling variations:
sach van » sach han, sach va, bach van
van nang » van quang, van ban, van dong
thanh vi » hanh vi, thanh va, thanh ve
te sach » toc sach
hieu va » hieu qua
xuc van » duc van, luc van, vuc van
cua tre » cua te, cuu tre, cua triet
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.

• Performing a fuzzy search may retrieve terms with similar spellings: te sach van nang x hoi. ((hieu va) or (lieu va)) cam ((xuc van) or (duc tan)) thanh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach van nang x hoi. ((hieu va) OR (lieu va)) cam ((xuc van) OR (duc tan)) thanh vi cua tre.
• Adding a wildcard symbol may retrieve word variants: te sach van nang x hoi. ((hieu va) or (lieu va)) cam ((xuc van) or (duc tan)) thanh vi cua tre*.