Perhaps you should try some spelling variations:
van thanh » ban thanh, van tuan
thanh vi » hanh vi, thanh va, thanh ve
tu sach » thu sach, su sach, te sach
van cau » van dau, van hau, van chat
luc van » luoc van, luu van, duc van
van cam » van nam, van lam, van dam
ly vang » ly hang, ly van, ly quang
cua tre » cua te, cuu tre, cua triet
vi cua » vai cua, di cua

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 ((ly vang) or (ty xang)) xa hoi. hieu ((van cam) or (van cau)) luc van thanh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ((ly vang) OR (ty xang)) xa hoi. hieu ((van cam) OR (van cau)) luc van thanh vi cua tre.
• Adding a wildcard symbol may retrieve word variants: tu sach ((ly vang) or (ty xang)) xa hoi. hieu ((van cam) or (van cau)) luc van thanh vi cua tre*.