Perhaps you should try some spelling variations:
thien van » thi van
van thanh » ban thanh, van tuan
toc sach » hoc sach, doc sach, thuoc sach
thanh vi » hanh vi, thanh va, thanh ve
tu sach » thu sach, su sach, te sach
xang xa » lang xa, mang xa, ang xa
cua van » cua ban, cua vat, cua dan
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: ((tu sach) or (toc sach)) ty xang xa hoi. thien van nam cua van thanh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (toc sach)) ty xang xa hoi. thien van nam cua van thanh vi cua tre.
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (toc sach)) ty xang xa hoi. thien van nam cua van thanh vi cua tre*.