Man pages matching name tdfsb in section 6:

tdfsb.6.en	debian 10 / tdfsb
tdfsb.6.pl	debian 10 / tdfsb
tdfsb.6.en	debian 11 / tdfsb
tdfsb.6.pl	debian 11 / tdfsb
tdfsb.6.en	debian 12 / tdfsb
tdfsb.6.pl	debian 12 / tdfsb