Collection-repeat refresh list when search

I have a problem with list collection-repeat.
When i have a big list of items and when I type to search any element I have more elements that start with the same letter, for example “Pippo1” “Pippo2” and “Pippo3” in a big list if i type “Pippo” I suppose to see all the items that starts with “Pippo” but if I not touch into the scroll box the items will not be refreshed.

If you modify the first 3 elements whit the name Pippo1 - 2 - 3 and try on browser you can see the problem, and in Android 4.4.2 have the same problem.
I suppose it is a problem on refreshing items if the elements searched is not on the html rendered item.