Mark-k

Provides a [search] shortcode to insert search form in content.
Works with all bundled themes (2010,2011,2012). Should work with any other decently coded theme

Search shortcode

I went looking for a simple shortcode for adding the search form to a page, and found so much more. Well done!

Simple and easy to configure

Provides a [search] shortcode to insert search form in content.

mattsgarage

The search functionality in woocommerce doesn’t search by sku by default.
This simple plugin adds this functionality search facility of your site, in both the public site and admin panel
Just install and activate – no config required.
Tested with Woocommerce 1.5.6, 2.0.7, 2.0.18, 2.2.4, 2.2.10, 3.4.4, 4.0.1 and 4.2.0
See the <a href="http://www.mattyl.co.uk/2012/12/11/woocommerce-plugin-to-search-products-by-sku/" title="accompanying blog post" rel="nofollow ugc">Accompanying blog post</a> for more information.

Search by SKU for Woocommerce

Extend the search functionality of woocommerce to include searching of sku

Search shortcode vs Search by SKU for Woocommerce