Perhaps you should try some spelling variations:
thien van » thi van
cua triet » cua viet, su triet, va triet
hanh dai » hanh tai, hanh dao, vanh dai
tu sach » thu sach, su sach, te sach
sach ty » sach y, sach tu, sach thu
ty nang » ky nang, ty xang, ty hang
van cau » van dau, van hau, van chat
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 ty nang x hoi. thien van cau ((duc va) OR (tuc xa)) hanh dai cua triet~.
• Adding a wildcard symbol may retrieve word variants: tu sach ty nang x hoi. thien van cau ((duc va) or (tuc xa)) hanh dai cua triet*.