Finding Free Expired Domains! (Help)

I'd like to know what terms I have to put on google so I can find expired domains like co.be, cz.cc and other free ones.
For example to find co.cc domains you type on google:["co cc has expired" "available continue to registration"].
Please share others that you know off thanks!

I dont think google indexes search results from queries from free domains

You mean only co.cc is indexed from the free ones?
That explains why an old website I had (*.co.be) simply disappeared from google some weeks/months ago...
Well I believe there is no point in using those domains then or in my previous question...