Before I was the same as you, tried to find out samples of CDR for my discipline. I found some CDRs (other disciplines) from Google but it was not helpful. I realised that whenever I read CDR from others, I could not make my own and I would follow the CDR samples and it would be very risky when EA evaluates my CDR. So, I gave up to refer to sample CDR, instead I referred to EA booklet and followed the instructions in there.
Writing CDR is a very interesting work and please make your own.
You can refer to the thread below. I found it very helpful.
I believe people generally think that if they take stuff from other samples, twist and turn it to make their own, it'll help. It may help in some cases, but I guess since these career episode are so lengthy and detailed, there is always a chance that you may not end up with a satisfactory CDR.