Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
va thanh » gia thanh, ban thanh, va tinh
thanh vi » hanh vi, thanh va, thanh ve
te sach » toc sach
xang xa » lang xa, mang xa, ang xa
hieu ve » hieu va, hieu van
dao duc » giao duc, tao duoc
cua tre » cua te, cuu tre, cua triet
vi cua » vai cua, di cua

You may be able to get more results by adjusting your search query.

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