Perhaps you should try some spelling variations:
thanh vai » thanh hai, thanh van, thanh tai
va cham » va chat, va tham
vai cua » dai cua, hai cua, lai cua
sach ty » sach y, sach tu, sach thu
su sach » so sach, vu sach
ty nang » ky nang, ty xang, ty hang
nang xa » nang x, lang xa, nang ma
cua tre » cua te, cuu tre, cua triet
xuc va » duc va, tuc va, xac va
luc va » duc va, tuc va, loc va
va cam » va cac, va cao, va cai

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach ty nang xa hoi. lieu ((va cam) or (va cham)) ((xuc va) or (luc va)) thanh vai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ty nang xa hoi. lieu ((va cam) OR (va cham)) ((xuc va) OR (luc va)) thanh vai cua tre.
• Adding a wildcard symbol may retrieve word variants: su sach ty nang xa hoi. lieu ((va cam) or (va cham)) ((xuc va) or (luc va)) thanh vai cua tre*.