Hello, ive come into an issue I didnt expect. Hope this isnt a feature thats not possible.

I have a catalog of items with various model numbers as attributes, If using the search box and searching for a model number it wont pick up model within the search engine? is this something silly ive overlooked or a feature that Zen Cart is unable to do? The reason its so important is that an item can have multiple model numbers and it made sense to use the attributes facility to input this and keep everything tidier. A little worried now

Any advice would be greatly appreciated
Thank you
Sam