by Amir Elion.
Hi Prateek,
this is very welcome. Hope it becomes fruitful soon.
I would suggest considering more capabilities to control which roles see which results. E.g. You could add a view search module A results capability to role 1 and not to role 2. This would allow several levels of search to different types of users.
Would also highly stress the usability option for refining search or search within results.
Obviously very effective UI ideas and features can be learned from Google search - e.g. Tabs to allow switching between different types of results (text, images, news etc in google, perhaps All, Content, Users, Courses, etc. in Moodle). Also ability to filter results quick according to latest update or creation (within 30 days, 3 months, year).