From what I know or believe 70% of the jobs out there are never advertized, and as such "on the hidden job market". These jobs go via connections, friends and people who know people. As far as I know, all the best jobs are here.
when you go through this job-market you deal with people 'who want you there', when you go via job-ads you deal with HR who's only task is to get rid of a bunch of people in the pile of applications, so they're looking for a way to eliminate you so they're left with a few final applicants.
One way to get the really good job is by changing the game and use the network for all it's worth
This is difficult and very hard work
Use your linkedin profile, create one if you don't have, search for people, get in touch with people, think out of the box.....
Good luck