I'm assuming you know of the search box at the bottom of every HN page - what more do you think is being used? Why do you think something more is needed?

As an aside, I went to look at some of your old posts and got this:

    Secure Connection Failed

    The connection to the server was reset
    while the page was loading.

        The page you are trying to view cannot
        be shown because the authenticity of
        the received data could not be verified.
        Please contact the web site owners to
        inform them of this problem.