The way Limewire is set up at present, you will need to think very carefully how you can search using more than 2 characters to find what you want to find. Because you can search using different types of criteria, you can try to find a way of expressing it using 3 or more characters.
As far as results go, showing results with only 2 characters I don't know. I would need to change my set-up & experiment to find this out. Or perhaps you could tell us.
Thank you for bringing this to our attention & I'll try to leave a note for the developers (not that they ever listen to me anyway, lol
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I see that you are in fact using a Japanese ip. Out of curiousity which city are you from?