Search products by each word of a phrase in backend product listing

Hi all,

I am stuck in to find a solution to search products in backend by each word of phrase like “Microsoft Computer” so results should come by search of “Microsoft” and “Computer” and not by “Microsoft Computer”.

I have found the file which is responsible “/themes/Backend/ExtJs/backend/article_list/controller/main.js”. So I want to extend it throught plugin, but don’t know how to do this. Please suggest if you have any idea.