
An eCommerce store must have the ability to find products that customers are looking. Bad search experiences can result in sales being lost quickly. This is particularly true for ecommerce stores selling thousands of products. Thus, it is essential to provide the best search options to users.
WooCommerce Product Lookup by Category Plugin
This plugin is completely free. It allows customers to search in your store for products using tags and categories. It also offers a shortcode option that allows you to place the search form anywhere on your site. You can set a limit for how many products to be displayed and choose from several filters.
It includes an easy-to-use interface and can display a variety of search results including product images, titles, descriptions, price, ratings, sku, sale badges, featured badges, etc. It also offers a live filter feature to allow your customers to narrow down their searches and make more informed decisions on purchases.

WooCommerce Product Lookup by Variation Names & Short Descriptions
This plugin allows customers to search for the exact product they are looking. It provides an efficient and fast user experience. It displays the product's image, description, price, and promotional badges to increase conversions. You can choose from a free version or a premium plan starting at 36 USD/year.
Doofinder Site Search for WooCommerce Plugin
This advanced search plugin is integrated with WooCommerce. It gives customers the fastest way to find products. It utilizes artificial intelligence to recognize their behavior and provide personalized results.
The plugin is compatible to popular page builders, such as WPBakery (and Elementor), and offers a range of settings that can be customized the way results are displayed. It has powerful filters, multiple search bars and high accuracy.
Advanced WooCommerce Search plugin
If you have a large catalog, you may want to add an advanced search tool that is capable of finding popular and trending items. This will allow your customers to find what they are looking for and save them from leaving your store too soon.

It can also be set up to exclude products from search results based on SKUs and attributes. It can also filter out out-of stock items and split search text by using spaces. It can also locate synonyms or similar words to give more relevant results to international visitors.
Add filters to improve WooCommerce search
WooCommerce product filters are a great way of improving search performance. Acsell allows you the ability to create custom search filters which allow site visitors to filter your inventory based on item, stock, attributes tags and price.
These filters can also be configured via the WooCommerce admin Product Filters tab. You can create many filters and place them on different areas of your website including the main product pages.