Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
van nang » van quang, van ban, van dong
hanh dai » hanh tai, hanh dao, vanh dai
va cham » va chat, va tham
cua tre » cua te, cuu tre, cua triet
v nang » va nang, vu nang, voi nang
loc va » luc va
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: thuat sach ((v nang) OR (van nang)) x hoi. lieu va cham ((hoc va) or (loc va)) hanh dai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat sach ((v nang) OR (van nang)) x hoi. lieu va cham ((hoc va) OR (loc va)) hanh dai cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat sach ((v nang) OR (van nang)) x hoi. lieu va cham ((hoc va) or (loc va)) hanh dai cua tre".
• Adding a wildcard symbol may retrieve word variants: thuat sach ((v nang) OR (van nang)) x hoi. lieu va cham ((hoc va) or (loc va)) hanh dai cua tre*.