First you need to tell me which method are you using. Because they have different approaches. Juggler Irwin is a sub for Professor Elm, if you didn't meet those prereqs. And both of them only tell you three different messages. It's the order of the messages that counts.
For Professor Elm:
When he talks about Pokerus - P;
When he talks about Evolution - E;
When he talks about Kanto - K.
For Juggler Irwin:
When he talks about your mom, how many Pokemon did you got (huge message) - P;
When he talks about your escapades - E;
I don't actually remember but there's something with K there - K.
When you got that info, go to Seed to Time, insert your seed info, make sure it's HGSS and that you have no roaming Pokemon. At the bottom it will show you the Elm/Irwin responses you should get if you hit your seed. If you didn't, use the second part and click generate (Delays -99/+99 and seconds -9/+9) to see how much you missed.