"stairs" is not a common enough thing that people are searching for that most companies would have thought to tag their scenes with that.

You're better off just providing as much detail as you can (like you did in the other thread you just started) and then hoping that someone recognizes the scene by your description.

What may help you (in that thread) is providing more details about the female performers themselves, as well as the setting.

But without pictures, or names, it's going to be an uphill battle. Even if someone else has seen the scene in question, they might not remember the part about the stairs and so it won't occur to them that they know the scene.

[Link]