Doesn't seem like your resume or approach in applying to open positions is your problem. It seems like you're not connecting well with the interviewers in some way.
Some people are able to do that subconsciously. If your not one of them you should probably learn some basics in how to read body language.
Then you should also apply some mirroring. I wouldnt overdo it with body language, but mirroring with spoken language can be quite powerful (and is more stealthy). Normally there are many different ways in our language to express an idea. Try to do it in a way that is natural to your counterpart.
Look at what you can infer from the appearance of the interviewer. Maybe you can also find out more about him before the interview. What generation does he belong to? Is he conservative/progressive/whatever? What programming languages is he familiar with? ...
Does he look rather old and conservative? - Maybe dont talk about your love for the newest tech hype. Put an emphasis on your good cs fundamentals.
Is he a Java programmer? - use the word interface
Is he a Haskell programmer? - use the word typeclass
