The Site Search ONE WordPress Plugin is now available from the WordPress Plugins Directory. The plugin is free and open-source but requires a subscription to the search-as-a-service provided by the Search Cloud One platform – a 30-day free trial is available.
Advanced search features include a search widget with drop-down choice of indexes and filters, optional Stemming or Synonym buttons, optional choice of Boolean, Any Word or All Word searches, Dark Mode support and more. Faceted search, field filters, stemming, WordNet synonyms, Nested Boolean or All/Any Word searches, highlighted hits in a snippet of text from your post or page, sorting by date or alphabetically as well as by relevance. Support for WooCommerce search, Advanced Custom Fields and more, see the full details here Site Search ONEA premium plugin is also available – this adds searching of PDF and other files in your WordPress Media Library.