Perhaps you should try some spelling variations:
thu sach » thuat sach, thuoc sach, thu hoach
van tuan » van quan, van ban, anh tuan
nang lai » nang tai, mang lai, nang cai
tu sach » su sach, te sach, tu cach
tuan ki » tuan kiet, tuan khai, tuan kien
xuc van » duc van, luc van, vuc van
hieu ve » hieu va, hieu van
su tien » su kien, su hien, tu tieng
lai roi » lai hoi, loi roi
v nang » va nang, vu nang, van nang
ki su » ky 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 lai roi. ((hieu ve) OR (hieu qua)) cam xuc van tuan ki su tien~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) OR (thu sach)) v nang lai roi. ((hieu ve) or (hieu qua)) cam xuc van tuan ki su tien~".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) OR (thu sach)) v nang lai roi. ((hieu ve) or (hieu qua)) cam xuc van tuan ki su tien*.