It appears it isn't possible. I set up a similar document with spaces added between the word "index" and the letters "A" or "B". My thinking was that the connected wording of your phrase "ItemA-rotation" was limiting the search. But searching for the word "index" didn't reveal all the items; it had to be typed exactly as the name was set up in the Navigation Panel. Perhaps I'm missing some unknown control characters but I have never seen what those could be.
Ok, thank you Maeric for your answer, this is what i was thinking too, i tried lot of solutions but couldn't help. I'll have to find another solution.