Perhaps you should try some spelling variations:
van thanh » ban thanh, van tuan
thanh vi » hanh vi, thanh va, thanh ve
thu sach » thuat sach, thuoc sach, thu hoach
tu sach » su sach, te sach, tu cach
xuc van » duc van, luc van, vuc van
hieu va » lieu va, hieu qua
hieu ve » hieu van
su tien » su kien, su hien, tu tieng
nang ma » tang ma, sang ma, nang cao
ma hoi » mai hoi, xa hoi, ma hoa
v nang » va nang, vu nang, van nang
vi su » va su, ve su, ki 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) OR (thu sach)) v nang ma hoi. ((hieu ve) OR (hieu va)) cam xuc van thanh vi su tien~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) OR (thu sach)) v nang ma hoi. ((hieu ve) or (hieu va)) cam xuc van thanh vi su tien~".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) OR (thu sach)) v nang ma hoi. ((hieu ve) or (hieu va)) cam xuc van thanh vi su tien*.