stumble across

Families from the country frequently stumble across these places by accident.

He will not lower nor raise his voice for the sake of the profane and idle who may chance to stumble across his entertainment.

They keep digging around until they stumble across something and then tear things to pieces.

If you are unlucky enough to stumble across my path again, though, I shall be less merciful.

He did not accidentally stumble across success, but he deliberately aimed at what he hit.