Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
va cham » va chat, va tham
hanh di » hanh vi, hanh de, hang di
cua tre » cua te, cuu tre, cua triet
sach v » sach va, sach y, sach 2
v nang » va nang, vu nang, van nang
co hoi » co hoc, co loi
loc va » luc 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: thuat sach v nang ((x hoi) or (co hoi)). lieu va cham ((hoc va) or (loc va)) hanh di cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat sach v nang ((x hoi) OR (co hoi)). lieu va cham ((hoc va) OR (loc va)) hanh di cua tre.
• Adding a wildcard symbol may retrieve word variants: thuat sach v nang ((x hoi) or (co hoi)). lieu va cham ((hoc va) or (loc va)) hanh di cua tre*.