Perhaps you should try some spelling variations:
thanh loc » thanh loi, thanh hoc, thanh long
van thanh » ban thanh, van tuan
hieu van » hieu va, thien van, lieu va
hanh vai » hanh vi, hanh va, hanh tai
vuc nang » cuc nang, vu nang, chuc nang
vai cua » dai cua, hai cua, lai cua
va hanh » van hanh, va thanh, va danh
tu sach » thu sach, su sach, te sach
cua tre » cua te, cuu tre, cua triet
ma hoi » mai hoi, xa hoi, ma hoa
loc va » hoc va, luc va
v nang » va nang, vu nang, van nang

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 nang) or (vuc nang)) ma hoi. hieu van thanh loc va hanh vai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ((v nang) OR (vuc nang)) ma hoi. hieu van thanh loc va hanh vai cua tre.
• Adding a wildcard symbol may retrieve word variants: tu sach ((v nang) or (vuc nang)) ma hoi. hieu van thanh loc va hanh vai cua tre*.