Perhaps you should try some spelling variations:
thanh te » thanh de, thanh le, thanh tu
thanh ve » hanh ve, thanh va, thanh vien
te sach » toc sach
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
cau luc » cau truc, cau phuc
luc van » luoc van, luu van, duc van
cua tre » cua te, cuu tre, cua triet
y nang » ky nang, ly nang, v nang
va cau » van cau, va cac, va dau

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 y nang xa hoi. hieu va cau luc van ((thanh te) or (thanh ve)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y nang xa hoi. hieu va cau luc van ((thanh te) OR (thanh ve)) cua tre.
• Adding a wildcard symbol may retrieve word variants: te sach y nang xa hoi. hieu va cau luc van ((thanh te) or (thanh ve)) cua tre*.