Perhaps you should try some spelling variations:
hanh vai » hanh vi, hanh tai, hanh van
tu sach » thu sach, su sach, te sach
sach ty » sach y, sach tu, sach thu
hanh va » hang va, hanh vi
xuc ban » duc ban, cuc ban, quoc ban
van dau » van dao, phan dau
van cau » van hau, van chat, toan cau
xang ma » tang ma, nang ma, sang ma
cua tre » cua te, cuu tre, cua triet
ma hoi » mai hoi, xa hoi, ma hoa

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 ty xang ma hoi. hieu ((van cau) or (van dau)) xuc ban ((hanh vai) or (hanh va)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ty xang ma hoi. hieu ((van cau) OR (van dau)) xuc ban ((hanh vai) OR (hanh va)) cua tre.
• Adding a wildcard symbol may retrieve word variants: tu sach ty xang ma hoi. hieu ((van cau) or (van dau)) xuc ban ((hanh vai) or (hanh va)) cua tre*.