Search Collection example not working on a Menu+Tabs ionic Project

Hello,

It is very strange how that doesn’t work but have a look to my Menu+Tabs ionic Project : http://dl.free.fr/nzkeFSJ2V

The Search isn’t working at all.
If someone is enough friendly to have a look and give a try to tell me why the search functionality is not OK,
That will be a great help !!!

Thank you.