Obviously, I wanna give a thanks to one of my good and helpful friend , Because when I asked him about this same issue, Then he makes me clear with a good example. I think this is the right place to share it ...He said
Biju look this simple view:
"brand name :vs: keywords
IBM.com : vs : companythatmakescomputers.com
CocaCola.com : vs : carbonatedDrink.com
Google.com : vs : Searchengine.com
the most popular sites did not exist as words, before they became websites, facebook (?).
the site name is absolutely irrelevant to search engines;
relevant to people, use what people recognise
Content matters to search engines,
get the content right with the directives from your Google webmaster tools page."
So you may clear now Online Bliss!