Search faster. When your WordPress search fails, when your WooCommerce search or bbPress search gets stuck, you need a change of search technology.
WPSearch 2 is the missing site search for your WordPress installation. Install this plugin if you need a fast, relevant, google-like search.
WP-Elasticsearch replaces the default WordPress search with ElasticSearch.
wpSearchMu is a very powerful search plugin for WordPress Mu. It is based on the open source search engine "Lucene" which means its fast and relevant.