The stuff that’s a permanent part of the page, like “Answer this question” above the answer box, isn’t searchable content. It’s part of the user interface. Searching for that is kind of like using the library card catalog to search for “blue binding” because you’re looking for a book with a blue binding. That is not going to be a catalog entry. The catalog is for books, not bindings.
But the “Orphans” button is right there under the “General” and “Social” tabs. Why don’t you just click it?
If the mouse is giving you trouble, searching Fluther won’t help. Try another mouse.