At least you got the CHANCE to explain before. Now you can't even do that because your resume is not passing the screen.

You're handicapping yourself with the lack of transparency. It just comes across as shady. Why are you worth the risk compared to the overflow of excellent candidates in this market?

You need to suck it up and share this information. Briefly explain each situation on the resume (i.e. "fixed contract ended" or "startup shut down due to loss of largest customer").

Edit: spelling.