Perhaps you should try some spelling variations:
thanh vi » hanh vi, thanh va, thanh ve
va thanh » gia thanh, ban thanh, va tinh
nam thuc » nam thuoc, am thuc, nam thu
thuc va » thuc vat, thuc dan, thuc day
hieu va » lieu va, hieu qua
cua tre » cua te, cuu tre, cua triet
hieu ve » hieu van
sach va » sach xa, sach ha, sach dao
sach v » sach y, sach 2, sach vay
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: vu ((sach v) OR (sach va)) nang x hoi. ((hieu ve) OR (hieu va)) nam thuc va thanh vi cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu ((sach v) OR (sach va)) nang x hoi. ((hieu ve) or (hieu va)) nam thuc va thanh vi cua tre~".
• Adding a wildcard symbol may retrieve word variants: vu ((sach v) OR (sach va)) nang x hoi. ((hieu ve) or (hieu va)) nam thuc va thanh vi cua tre*.