Perhaps you should try some spelling variations:
thien van » thi van
su triet » su tien, ve triet
hanh dai » hanh tai, hanh dao, vanh dai
tu sach » thu sach, su sach, te sach
su viet » so viet
van dau » van dao, phan dau
y nang » ky nang, ly nang, v nang
tuc va » thuc va, truc va, tuc xa
xuc va » duc va, luc va, xac va
x hoi » xa hoi, o hoi, x ho

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 y nang x hoi. thien van dau ((xuc va) OR (tuc va)) hanh dai ((su triet) OR (su viet))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach y nang x hoi. thien van dau ((xuc va) or (tuc va)) hanh dai ((su triet) OR (su viet))~".
• Adding a wildcard symbol may retrieve word variants: tu sach y nang x hoi. thien van dau ((xuc va) or (tuc va)) hanh dai ((su triet) OR (su viet))*.