Perhaps you should try some spelling variations:
sach van » sach han, sach va, bach van
van nang » van quang, van ban, van dong
te sach » toc sach
hanh di » hanh vi, hanh de, hang di
hieu va » lieu va, hieu qua
cua tre » cua te, cuu tre, cua triet
nang ma » tang ma, sang ma, nang cao
hieu ve » hieu van
xuc va » tuc va, luc va, xac va
ma hoi » mai hoi, xa hoi, ma hoa
di cua » dai cua, doi cua, de cua

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: te sach van nang ma hoi. ((hieu ve) OR (hieu va)) cam ((xuc va) OR (duc va)) hanh di cua tre~.
• Adding a wildcard symbol may retrieve word variants: te sach van nang ma hoi. ((hieu ve) or (hieu va)) cam ((xuc va) or (duc va)) hanh di cua tre*.