Perhaps you should try some spelling variations:
van thanh » ban thanh, van tuan
thanh ki » thanh kim, thanh ky, thanh ke
tu sach » thu sach, su sach, tu cach
xuc van » duc van, luc van, vuc van
hieu va » lieu va, hieu qua
hieu ve » hieu van
nang xa » nang x, lang xa, nang ma
te sach » toc sach
v nang » va nang, vu nang, van nang
ki su » ky su
kien » bien, vien, tien

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