You can search for products by pressing the magnifying glass. The category row will changes into a search field. What appears in the hit list is always the default variants of products. If you get hit on a variant, it's still its default variant that appears.
The following variables are searchable on a product.
- Product Name and its variants (title).
- Article number (sku).
- Manufacturer's barcode (skumanufacturer)).
- Campaign title on the product (offer title, ie a product-level campaign).
- Keyword, if you have added keywords to any of the fields Own 1-5 on the product.