The Architectural Forum review for Shopify Search & Discovery

How can Shopify have a native search app that doesn't allow customers to search for items via their SKU?? All of our products have specific SKU names that are intrinsic for liaising with customers. I now have 3 Shopify stores that are causing so much frustration - a massive problem that could be solved with one simple fix. Shopify, surely its time to fix this?!