Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
hieu van » hieu va, thien van, lieu va
tham hoa » pham hoa, thanh hoa, pham khoa
van hanh » van thanh, ban hanh, van anh
hanh dai » hanh tai, hanh dao, vanh dai
te sach » toc sach
y nang » ky nang, ly nang, v nang
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: te sach y nang x hoi. hieu van ((cham soc) OR (tham hoa)) van hanh dai cua triet~.
• Adding a wildcard symbol may retrieve word variants: te sach y nang x hoi. hieu van ((cham soc) or (tham hoa)) van hanh dai cua triet*.