Finding all the collisions for a given hash

[jj]

I'm brute forcing crc32 check sums and they have many collisions. For e.g. following strings have the same crc32.
[.ERM*]
[B6In]
[^y#Hz]
[cho "]

So, is there a way that I can get all the collisions for a given checksum?
Currently hashcat gives only the first one in the results
I'm executing this -

Code:

hashcat64.exe -a 3 -m 11500 hashes.txt ?a?a?a?a?a