Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
hanh di » hanh vi, hanh de, hang di
va cham » va chat, va tham
ly hang » ly quang
ly nang » ky nang, ly vang, ly quang
cua tre » cua te, cuu tre, cua triet
goc va » hoc va, loc va, doc va
luc va » duc va, tuc va, loc 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 ((ly nang) OR (ly hang)) x hoi. lieu va cham ((goc va) or (luc va)) hanh di cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ((ly nang) OR (ly hang)) x hoi. lieu va cham ((goc va) OR (luc va)) hanh di cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach ((ly nang) OR (ly hang)) x hoi. lieu va cham ((goc va) or (luc va)) hanh di cua tre".
• Adding a wildcard symbol may retrieve word variants: thu sach ((ly nang) OR (ly hang)) x hoi. lieu va cham ((goc va) or (luc va)) hanh di cua tre*.