I believe we may have stumbled onto something similar here.

You know, it looks to me as though we had stumbled onto a great love story.

Yet, he has the best chance of stumbling onto them, so we've got to act quickly.

I expect to be stumbling onto them for years to come.

Obviously, she had stumbled onto something the doctor didn't want her to know about.

He got lost one day last summer and stumbled onto my camp.

It's only a matter of time before they stumble onto the field themselves.

Yet the feeling he'd stumbled onto something stayed with him.

But once in a while you stumble onto a Web site with information people may actually want.

They stumbled onto the road by accident and thought the area was great.