Perhaps you should try some spelling variations:
thanh toan » thanh hoa, thanh san, tinh toan
toan luan » toan quan, doanh luan, tranh luan
te sach » toc sach
luan tu » luan thu, luat tu, tuan tu
va cam » va cham, va cac, va cao
sach v » sach va, sach y, sach 2
luc va » duc va, loc va
tuc va » thuc va, truc va, tuc xa
v nang » va nang, vu nang, van nang
x hoi » o hoi, x ho, 5 hoi

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: te sach v nang ((x hoi) OR (xa hoi)). lieu va cam ((luc va) OR (tuc va)) thanh toan luan tu~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach v nang ((x hoi) OR (xa hoi)). lieu va cam ((luc va) or (tuc va)) thanh toan luan tu~".
• Adding a wildcard symbol may retrieve word variants: te sach v nang ((x hoi) OR (xa hoi)). lieu va cam ((luc va) or (tuc va)) thanh toan luan tu*.