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But wait...I tried another search and then there was another link that said: Try your search again on Google Book Search" and I clicked on it and suddenly there was something but it was "RESTRICTED" content....so it is a book search that is too hot to handle? I dunno but it seems like a useless click either way...both times I took a chance and both time I got a useless answer...thanks goofle!
It's a goldmine for Google.
One option for them might be to display that link for each phrase/keyword and then cache the result of the first search in boolean form (1=results available / 0=no results). If 1, they could show the link, otherwise they would know that it's not worth displaying the link since there are no results. I don't think they do that though.
Anyway, I've noticed those kinds of usability mistakes on various websites and search engines. In the case of Google & search engines, it's probably just an inability to dedicate the resources. In the case of other websites, it's most likely just poor design & usability.