Search Module: Reduce min chars to 2? [RESOLVED]

-- url of the page with the problem -- : dev site
-- HikaShop version -- : 2.4.0
-- Joomla version -- : 3.4.1
-- PHP version -- : 5.3
-- Error-message(debug-mod must be tuned on) -- : Search term must be a minimum of 3 characters and a maximum of 200 characters.

Hi, Our site sells fittings with different angles available.

So for example, a visitor may want to search for all the 90^o degree hose ends.

"90 degree" won't find any matches.
"90^o" - a casual shopper is not going to be able to add the superscript 'o'.
"90" gives the message: Search term must be a minimum of 3 characters and a maximum of 200 characters.

Is it possible to reduce the search minimum to 2 chars ?

Many thanks
Paul