Yes, most of the applications work fine if selinux is off and I like to install the selinux Policy targeted sources but having problem on the first step.

I can really yum the selinux-targeted-sources, there is no matching of such packages.

Thank you so much for the help and the community spirit

You can try "yum install selinux-policy-targeted"

The selinux-policy-targeted installed is newer than the default version.

Which file need to be edited and compile?