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