There is a typo on the search placeholder page (the page it has when the search is down).
It currently says:
Oh no! Search is currently offline.
This is usually because we let the gerbils out for 10 seconds longer than we should have, or are actively improving our search results and needed to take things offline while we re-index this site. Hang tight and we'll return search to you as soon as possible. While you want, consider checking out our search tips (who knows, maybe we just added a new one).
For the moment, you can try your search in Google: http://www.google.com/search?q=site:stackoverflow.com/questions render_template
The last sentence starts with "While you want". I think it should say "While you wait"