APRS messages are stored for 14 days. It is possible to search using wildcards (*?) after a prefix.
2021-02-26 10:57:39 EST: N1YBX>ON6ZQ: are you doing any 2 meter on 146.520 FM? 2021-02-26 10:58:12 EST: N1YBX>ON6ZQ: are you doing any 2 meter on 146.520 FM? 2021-02-26 10:58:44 EST: N1YBX>ON6ZQ: are you doing any 2 meter on 146.520 FM?