Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
vu nang » vuc nang, va nang, vu dang
va chat » van chat, va phat, cao chat
hanh di » hanh vi, hanh de, hang di
cua tre » cua te, cuu tre, cua triet
y nang » ky nang, ly nang, v nang
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: thuoc sach ((y nang) or (vu nang)) x hoi. lieu va chat ((goc va) or (duc va)) hanh di cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuoc sach ((y nang) OR (vu nang)) x hoi. lieu va chat ((goc va) OR (duc va)) hanh di cua tre.
• Adding a wildcard symbol may retrieve word variants: thuoc sach ((y nang) or (vu nang)) x hoi. lieu va chat ((goc va) or (duc va)) hanh di cua tre*.