It turned out the way optimization in blogger post title is very easy ... all you have to do is add the following simple code on your blogspot post title link. You can add this code through blogger template. Here is the code that I mean it:
expr:title='data:post.title'
To be more clear here are the steps how to optimize the title of blogger posts that you can apply on your blogspot;
1). Log into your blogger dashboard
2). Select Design>> Edit HTML and tick the "Expand Widget Templates"
3). Find this code: <a expr:href='data:post.link'><data:post.title/></a>
4). Replace with this code: <a expr:href='data:post.link' expr:title='data:post.title'><data:post.title/></a>
5). Save the results of your editing with the click of a button "SAVE TEMPLATE"
6). DONE !!!
When you move the mouse over the title of the article then you'll see a tooltip displays the title of blogger posts.
Sample (over your mouse on the post title and see the post title tooltip):
