Icy Phoenix :: View topic - 5 character for search.php needed?

Hi,

I have never notice that you need 5 characters to get a hit in search.php

If you search for "TEST" you get this:

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No posts met your search criteria

But there are a lot of hints Link

Where can I change it to 4 characters? Or the best way is to show a message like

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You have to choose more than X characters

Thanks

EDIT: Hmm, if I search for "MP3" its working: Search for mp3

Icy Phoenix