These copies weren't deleted unless you chose to reset your phone. So if you installed lots of bigger apps and games, your "other" storage may have filled up with these files.
Hindi tatanggalin ang mga kopyang ito maliban kung pipiliin mong i-reset ang telepono mo. Kaya kung nag-install ka ng maraming malalaking app at laro, maaaring napuno ang iyong storage na "iba pa" ng mga file na ito.