Perhaps you should try some spelling variations:
van thanh » ban thanh, van tuan
dung khoa » dung cho
khoa hoi » khoan hoi, khoa hoc, khoa doi
cham xuc » cam xuc, chat xuc, cham soc
thanh ca » thanh cha, thanh cac, thanh ha
so sach » so sanh, bo sach, hoc sach
co sach » bo sach, cuon sach, hoc sach
ly dung » ly dong, xay dung, ly khung
hieu tu » chieu tu, hieu tuc, hien tu
tu cham » toc cham, thi cham
xuc van » duc van, luc van, vuc van
cua tre » cua te, cuu tre, cua triet
ca cua » co cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((so sach) or (co sach)) ly dung khoa hoi. hieu tu cham xuc van thanh ca cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((so sach) OR (co sach)) ly dung khoa hoi. hieu tu cham xuc van thanh ca cua tre.
• Adding a wildcard symbol may retrieve word variants: ((so sach) or (co sach)) ly dung khoa hoi. hieu tu cham xuc van thanh ca cua tre*.