How do I find someone else's ad on facebook?

[Guy]

I have been looking on facebook for others ads for hours now. It tells me how to place an ad but not how to find someone else's ad.I have run out of options.
How do I find ads on facebook? I don't want to place an ad, I want to see what other people are advertising.
I still can't find one ad.
I have been to "help center". They want me to place an ad. Nothing tells me where all the ads are at. Nothing.

[Cry Baby Obama]

How do I filter my search results?
When you enter a query into the search bar at the top of Facebook, you can narrow your results by filtering them: Type your query in the search barScroll...
When you enter a query into the search bar at the top of Facebook, you can narrow your results by filtering them:
1.Type your query in the search bar
2.Scroll down to the bottom of the typeahead dropdown and click to See more results
3.Select a filter from the menu in the left column