Perhaps you should try some spelling variations:
thanh vi » thanh va, thanh ve, nhanh vi
te sach » toc sach
sach ty » sach y, sach tu, sach thu
ty nang » ky nang, ty xang, ty hang
nang xa » nang x, lang xa, nang ma
thi van » thi lan, thi hanh, thi nang
nam mua » nam cua, nam qua, nam xua
mua van » ma van, mua ban, mua dan
cua tre » cua te, cuu tre, cua triet

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

• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ty nang xa hoi. ((thien van) OR (thi van)) nam mua van ((thanh vi) OR (hanh vi)) cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ty nang xa hoi. ((thien van) or (thi van)) nam mua van ((thanh vi) OR (hanh vi)) cua tre~".
• Adding a wildcard symbol may retrieve word variants: te sach ty nang xa hoi. ((thien van) or (thi van)) nam mua van ((thanh vi) OR (hanh vi)) cua tre*.