Blogger Beta search does not work from 21st of May to the 19th of June. I just advice Blogger.com of the bug. That is the reason why I publish all the links, which will soon be 600 posts in the GMH Blog.
I new it did not work for the GMH for quite some time, but today I republished my blog and nothing happened. Later I searched all blogs and the same thing happen (update-this is not true, as I later found out). Blogger does not has it yet as a known issue. Hope they get it solve soon.