Perhaps you should try some spelling variations:
thien van » thi van
thanh doi » thanh loi, thanh moi, thanh do
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
xuc van » luc van, vuc van, xuc ban
duc van » duc va, duc tan, duc manh
doi cua » dai cua, hoi cua
cua tre » cua te, cuu tre, cua triet
x hoi » xa hoi, o hoi, x ho

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 ky nang x hoi. ((thien van) or (lieu va)) lam ((xuc van) OR (duc van)) thanh doi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky nang x hoi. ((thien van) OR (lieu va)) lam ((xuc van) OR (duc van)) thanh doi cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ky nang x hoi. ((thien van) or (lieu va)) lam ((xuc van) OR (duc van)) thanh doi cua tre*".