Perhaps you should try some spelling variations:
thien van » thi van
hanh vai » hanh va, hanh tai, hanh van
tu sach » thu sach, su sach, te sach
sach ty » sach y, sach tu, sach thu
thuc va » thuc vat, thuc dan, thuc day
cua tre » cua te, cuu tre, cua triet
van cau » van dau, van hau, van chat
nang xa » nang x, lang xa, nang ma
ty nang » ky nang, ty xang, ty hang
xuc va » duc va, tuc va, luc va

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