Perhaps you should try some spelling variations:
su triet » su viet, su tien, ve triet
cham tuc » nham thuc, pham thuc, tham thuc
te sach » toc sach
hieu ve » hieu van
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
sach v » sach va, sach y, sach 2
v nang » va nang, vu nang, van nang
tuc va » thuc va, truc va, tuc xa
dan va » dan ca, ban va, han va

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 xa hoi. ((hieu ve) OR (hieu va)) cham tuc va ((dan va) OR (doan va)) su triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach v nang xa hoi. ((hieu ve) or (hieu va)) cham tuc va ((dan va) OR (doan va)) su triet~".
• Adding a wildcard symbol may retrieve word variants: te sach v nang xa hoi. ((hieu ve) or (hieu va)) cham tuc va ((dan va) OR (doan va)) su triet*.