ZF WordPress Category Search is a WordPress advanced search box, the ability display categories as tabs/radio/dropdown with advanced fields, support WooCommerce, Easy Digital Downloads, custom post type, taxonomies.
You can search by search categories, tags, taxonomies, authors, date range, sort, order by …
Otherwise, you can also search multiple taxonomies of custom post type. These easily to really refine your searches.
You can buy with price better here : https://zufusion.com/downloads/zf-wordpress-category-search/
Key Features:

  • Tab slider category
  • Add icon popover for tab icon
  • Tab alignment
  • Radio category search
  • Dropdown category search
  • Auto suggest like google
  • Support WooCommerce category search, WordPress category search
  • Support Easy Digital Downloads, custom post type
  • Drap vs drop taxonomies to display
  • Search multiple taxonomies, author, price range, date range, order
  • Translation ready
  • Widget vs Shortcode ready
  • Easy to setup and customize
  • Support dark vs light skin
  • Cross-browser support

Change Log:

08.05.2021 - Version 2.7
* Added translatable and properly escaped
* Added .pot template file
* Removed en_US.mo and en_US.po
* Removed assets from CDN
* Data Validation
* Added "use strict" to js
02.10.2019 - Version 2.6
* Work with WordPress 5.2
25.05.2015 - Version 2.5
* Fixed can't open advanced box when category box is empty
* Fixed doesn't respond to the tags, categories of post in advanced box 
* Change default value of min count selected to 0 instead of 3 (only dropdown mode)
25.03.2015 - Version 2.4
* Added match type taxonomy values (categories) on setting page
* Allows show open advanced button inside or outside input query
* Show advanced button with icon or text or both
* Fixed dropdown mode doesn't show categories
* Fixed conflict with user pro plugin
* Fixed long category name for dropdown mode
23.03.2015 - Version 2.3 . this version you need to save setting page again
* Support search form template
* Added taxonomy checkbox field
* Put Advanced box inside the  popup
* Unlimited Level Sub Categories
02.02.2015 - Version 2.2 
* Fixed menu disappear after using search
* Fixed insert icon for Easy Digital Downloads
28.01.2015 - Version 2.1 
* Support Easy Digital Downloads
* Fixed radio css
04.11.2014 - Version 2.0 
* Added auto suggest like google.
* Support custom post type, multiple taxonomies
* Drap vs drop taxonomies
* Moved all options to setting page.
* Added some hooks function for the developer.