I am not getting the universal search scheme by google. sometimes the video gets into the first position and sometimes in the last position and sometimes there is no video in the result at all. IF a particular keyword has the videos listed then why the hell google does not display it?
Nobody knows for sure and Google doesn't tell us how it's algo works, but I'd bet this has something to do with how important Google considers those videos to be, how popular they are, the likelihood that the searcher is interested in a video relevant to a search term, etc. I.e. whether or not they deserve to be in video results on the first page.
there millions of site coming and out the web.. and it all depends on the popularity of it.. so there is no such as thing as accurate results..
Needn't confused as Google's universal search results are not constant. Their point on bringing out universal results is to provide multiple online presence to that particular term at the same time being the best relevant and popular and also noticed that it considers the fresh things in it.