1.) You are always applying for the wrong job( you possess a physics degree ,yet you keep applying for an accounting job).
2.) You are underqualified for the jobs you are applying for( you have a 3rd class and you keep applying for a second class upper job)
3.)You don't know how to outsmart your interviewer.
4.)You don't know how to dress for an interview.
and, very importantly
5.) Your CV is badly written ( your CV is the first point of contact between you and your potential employer,and as such, a badly written CV automatically creates a bad impression about you which invariably reduces your chance of getting a job)
To have your CV professionally written, check hotgistonline..com for more details.

Take action this week and move yourself to the next level !!!

The only reason I am sure of is the 'dearth' of 'leg' usually applied by so called 'godfathers' using their 'network' to take 'advantage'.

Or better still your 'inability' to 'belong' to the 'inner caucus' where it is 'happening'.