I was trying to customise look up view to add more column to find it i.e. add in search criteria but I could not find as you can see in the screen shot below
After looking around for sometime found out that there isn’t a way of modifying search/add find column on look up view however I managed to find out that we can customise Quick Find view and add column to include in our search
This will open a new window and from there we can add more column
It is recommended not to add too many columns in this search criteria otherwise it will affect speed of it.
Hope it helps others too.