Perhaps you should try some spelling variations:
thanh vi » hanh vi, thanh va, thanh ve
va thanh » gia thanh, ban thanh, va tinh
hieu van » hieu va, thien van, lieu va
nang mai » nang ma, nang tai, lang mai
mai khoi » mai khoa, tai khoa, cac khoi
so sach » so sanh, co sach, hoc sach
hieu ve » hieu va
ty nang » ky nang, ty xang, ty hang
bo sach » co sach, hoc sach
cua tre » cua te, cuu tre, cua triet
xuc va » duc va, tuc va, luc va
vi cua » vai cua, di cua

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: ((so sach) OR (bo sach)) ty nang mai khoi. ((hieu ve) OR (hieu van)) cam xuc va thanh vi cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((so sach) OR (bo sach)) ty nang mai khoi. ((hieu ve) or (hieu van)) cam xuc va thanh vi cua tre~".
• Adding a wildcard symbol may retrieve word variants: ((so sach) OR (bo sach)) ty nang mai khoi. ((hieu ve) or (hieu van)) cam xuc va thanh vi cua tre*.