Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
thu sach » tu sach, thuat sach, thuoc sach
van nang » van quang, van ban, van dong
vu nang » vuc nang, va nang, vu dang
va cham » va chat, va tham
hanh di » hanh vi, hanh de, hang di
goc va » hoc va, loc va, doc va
di cua » dai cua, doi cua, de cua
x hoi » xa hoi, o hoi, x ho

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: thu sach ((vu nang) or (van nang)) x hoi. lieu va cham ((goc va) or (duc va)) hanh di cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ((vu nang) OR (van nang)) x hoi. lieu va cham ((goc va) OR (duc va)) hanh di cua triet.
• Adding a wildcard symbol may retrieve word variants: thu sach ((vu nang) or (van nang)) x hoi. lieu va cham ((goc va) or (duc va)) hanh di cua triet*.