[Koha] z39.50 host in new zealand

[jennyzhang]

Dear all

I just installed koha for our school, everything seems ok. I am sure my 
z39.50 works properly. The problem is the Z39.50 host. Many books in my 
school are about business,cookery, hospitality and English language. When I 
try to do a z39.50 search, always get the message of "Nothing found". I can 
only find a few of books. I am in New Zealand. Can somebody tell me some 
z39.50 server?

The server I added are:  National library of New Zealand
                                     National library of Aus
                                     Australia national university
                                    library.bangor.ac.uk
                                    library.hull.ac.uk

Thanks for any help.

Jenny