Astahost does not really work like google. At astahost you ask a question, and somebody answers.
But why didn't you put Astahost on your list?
At google, you ask a question and you are redirected to a page with the answer.
I don't really like the Astahost search engine, very often I use it in order to retrieve a page I liked (for instance the post concerning the ssh templates) and the Astahost search result is "sorry".
Of course, one way would be to ask the question again, but I'm sure the answer would be "use the search button" !