Integrate Personal search engine

hi all,
i want to integrate personal search engine in my site, like google. how do i do that?

what do you mean by "personal search engine"

This is what I got on google.
http://www.google.com/search?q=personal+search+engine&sourceid=mozilla-search&start=0&start=0&ie=utf-8&oe=utf-8&client=firefox-a&rls=org.mozilla:en-US:official

Or are you asking how to intergrate google into your site to search it?

Via google it's prettry simple, just use:
site:(url of your site) keywords

It's pretty easy.