Perhaps you should try some spelling variations:
thanh tam » thanh tai, thanh tay, thanh nam
cham xuc » cam xuc, chat xuc, cham soc
kho tang » cao tang
sach kho » bach khoa, sach dao, sach nha
tu sach » thu sach, su sach, te sach
va cham » va chat, va tham
hieu va » lieu va, hieu qua
van hoi » van hoc, van hoe, van loi
cua tre » cua te, cuu tre, cua triet
xuc va » duc va, tuc va, luc va

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: tu sach kho tang ((van hoi) OR (van hoa)). hieu va cham xuc va ((thanh tam) OR (lanh dao)) cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach kho tang ((van hoi) OR (van hoa)). hieu va cham xuc va ((thanh tam) or (lanh dao)) cua tre~".
• Adding a wildcard symbol may retrieve word variants: tu sach kho tang ((van hoi) OR (van hoa)). hieu va cham xuc va ((thanh tam) or (lanh dao)) cua tre*.