Perhaps you should try some spelling variations:
van thanh » ban thanh, van tuan
thanh luc » thanh luu, than luc, nhan luc
hieu van » hieu va, thien van, lieu va
hanh vai » hanh vi, hanh va, hanh tai
vai cua » dai cua, hai cua, lai cua
va hanh » van hanh, va thanh, va danh
nang ma » tang ma, sang ma, nang cao
sach va » sach xa, sach ha, sach dao
cua tre » cua te, cuu tre, cua triet
sach v » sach y, sach 2, sach vay
ma hoi » mai hoi, xa hoi, ma hoa
luc va » duc va, tuc va, loc va

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 v) OR (sach va)) nang ma hoi. hieu van thanh luc va hanh vai cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sach v) OR (sach va)) nang ma hoi. hieu van thanh luc va hanh vai cua tre".
• Adding a wildcard symbol may retrieve word variants: tu ((sach v) OR (sach va)) nang ma hoi. hieu van thanh luc va hanh vai cua tre*.