Perhaps you should try some spelling variations:
thanh vai » thanh hai, thanh van, thanh tai
hieu van » hieu va, thien van, lieu va
van cham » van chat, van tham, va cham
su sach » so sach, vu 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
cuu ven » cuu van, cuu bien, cuu kien
vai cua » dai cua, hai cua, lai cua
cua tre » cua te, cuu tre, cua triet
cuu ve » cuu va

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. hieu van cham ((cuu ve) or (cuu ven)) thanh vai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ty nang xa hoi. hieu van cham ((cuu ve) OR (cuu ven)) thanh vai cua tre.
• Adding a wildcard symbol may retrieve word variants: su sach ty nang xa hoi. hieu van cham ((cuu ve) or (cuu ven)) thanh vai cua tre*.