Perhaps you should try some spelling variations:
van thanh » ban thanh, van tuan
nang lai » nang tai, mang lai, nang cai
tu sach » thu sach, su sach, te sach
xuc van » duc van, luc van, vuc van
hieu ve » hieu va, hieu van
lai roi » lai hoi, loi roi
sach v » sach va, sach y, sach 2
v nang » va nang, vu nang, van nang
vi su » ve su, ki su, oi su

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: tu sach v nang lai roi. ((hieu ve) OR (hieu qua)) cam xuc van thanh ((vi su) OR (va su)) tien~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach v nang lai roi. ((hieu ve) or (hieu qua)) cam xuc van thanh ((vi su) OR (va su)) tien~".
• Adding a wildcard symbol may retrieve word variants: tu sach v nang lai roi. ((hieu ve) or (hieu qua)) cam xuc van thanh ((vi su) OR (va su)) tien*.