Perhaps you should try some spelling variations:
thien van » thi van
cua triet » cua viet, va triet
hanh dai » hanh tai, hanh dao, vanh dai
su triet » su viet, su tien, ve triet
tu sach » thu sach, su sach, te sach
van cau » van dau, van hau, van chat
y nang » ky nang, ly nang, v nang
xuc va » duc va, tuc va, luc 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 cau ((xuc va) OR (tuc xa)) hanh dai ((cua triet) OR (su triet))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach y nang x hoi. thien van cau ((xuc va) or (tuc xa)) hanh dai ((cua triet) OR (su triet))~".
• Adding a wildcard symbol may retrieve word variants: tu sach y nang x hoi. thien van cau ((xuc va) or (tuc xa)) hanh dai ((cua triet) OR (su triet))*.