SharePoint 2013 Content By Search Disable ASCII Sorting

I am building a Content By Search web part that read data from a custom list with one column "Title". I have updated the search schema to mark the title column as sortable and now I can choose the title to sort by however the search results is always sorted by ASCII like [0-9A-Za-z] so if I have the following items

• Hossam


• A


• a

The search results will be

• A


• Hossam


• a

So I need your support on what I can do to make my search results like below

• A


• a


• Hossam

I have found the following link that is talking about the same issue with SharePoint 2010 FAST search but no hints about how to fix it on SharePoint 2013

http://ift.tt/1GhnZAs