After a mention of the Meaningo search engine on The Next Web, I went to the site to have a try. Turns out they don't want you to find anything, because there is no search form.
And even if you are able to find a form, it is apparently a good idea to hide the submit button:
<input id="applicationFormSubmit" name="applicationFormSubmit" type="submit" style="display:none;" />
All this needs to have a nice table layout, of course.
I guess startups still don't care about accessibility.