Those package are just that has configuration files that hasn't been removed.
It will be exhausting to use bleachbit, those files are spread allover your system and not founded under same folder. So you have to search for these files of each package alone then send its path to bleachbit. This would be so exhausting and time consuming, so it's better to use this command from your terminal:
dpkg -l | grep '^rc' | awk '{print $2}' | xargs sudo apt-get purge
You can get the list of the packages names that having residual config files by running the command:
grep-status -n -sPackage -FStatus config-files