Perhaps you should try some spelling variations:
van thanh » ban thanh, van tuan
thien van » thi van
thanh vi » hanh vi, thanh va, thanh ve
toc sach » hoc sach, doc sach, thuoc sach
mua van » ma van, mua ban, mua dan
nam mua » nam cua, nam qua, nam xua
ty nang » ky nang, ty hang, ly nang
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 (toc sach)) ((ty nang) OR (ty xang)) xa hoi. thien van nam mua van thanh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sach) OR (toc sach)) ((ty nang) OR (ty xang)) xa hoi. thien van nam mua van thanh vi cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((te sach) or (toc sach)) ((ty nang) OR (ty xang)) xa hoi. thien van nam mua van thanh vi cua tre".
• Adding a wildcard symbol may retrieve word variants: ((te sach) or (toc sach)) ((ty nang) OR (ty xang)) xa hoi. thien van nam mua van thanh vi cua tre*.