Search with less than 3 letter string

Hi, Volumio only allow the search string to be more than 3 letters. However, many Asian artist names are less than 3 letters. (1 letter or 2 letters last names are very common) Stopping the incremental search for less than 3 letters are understandable for search performance but when enter is pressed on the search window, I believe it better to allow to search for the search string less than 3 letters.

Does anyone know where I can modify to change this behavior? I would be helpful if you can point out the file name and the line number to modify.

Does anyone have any info on this?