Perhaps you should try some spelling variations:
thanh lap » thanh san, phan lap, thanh hai
toc sach » hoc sach, doc sach, thuoc sach
hieu van » hieu va, thien van, lieu va
van tham » van thanh, van tuan, van chat
hanh lam » hanh kem, hanh va, dinh lam
cua tre » cua te, cuu tre, cua triet
nang xa » nang x, lang xa, nang ma
sach ky » sac ky, sach y, sach ty
luc va » duc va, tuc va, loc va
xuc va » duc va, tuc va, xac va

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: toc sach ky nang xa hoi. hieu van tham ((xuc va) OR (luc va)) ((thanh lap) OR (hanh lam)) cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc sach ky nang xa hoi. hieu van tham ((xuc va) OR (luc va)) ((thanh lap) or (hanh lam)) cua tre~".
• Adding a wildcard symbol may retrieve word variants: toc sach ky nang xa hoi. hieu van tham ((xuc va) OR (luc va)) ((thanh lap) or (hanh lam)) cua tre*.