Perhaps you should try some spelling variations:
van thanh » ban thanh, van tuan
thanh di » thanh doi, thanh de, thanh do
vu sach » vu bach, su sach, vu khach
hieu ve » hieu va, hieu van
thu van » thuc van, thuy van, tu van
y nang » ky nang, ly nang, may nang
v nang » va nang, vu nang, van nang
di cua » dai cua, doi cua, de cua
cua tu » cua tuc, cua su, cua cu

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: vu sach ((y nang) OR (v nang)) x ho. ((hieu ve) OR (hieu qua)) nam thu van thanh di cua tu~.
• Adding a wildcard symbol may retrieve word variants: vu sach ((y nang) or (v nang)) x ho. ((hieu ve) or (hieu qua)) nam thu van thanh di cua tu*.