Relevanssi replaces the default search with a partial-match search that sorts results by relevance. It also indexes comments and shortcode content.

A powerful ajax search engine for WordPress. Add a live search form to your site with filters. Custom post types, custom fields, categories supported

This plugin adds to default WordPress search engine the ability to search by content from selected fields of Advanced Custom Fields plugin.

Better Search replaces the default WordPress search with a better search engine that gives contextual results sorted by relevance

Our FREE plugin makes your website’s search fast and more relevant. searchIQ helps you to manage content more effectively with real-time analytics.

Extends the default fulltext search with relevance, jet speed and ability to search any posts, metadata, taxonomy, shortcode content and more data.

Fast, intelligent, and fully customizable search for your site.

Precise and fast search, autocompletion, and search suggestions for your WordPress page.

Improve the search functionality on your site by using Bing Custom Search for WordPress.

A (unofficial) WordPress plugin to use Algolia as a search engine.

Ajax smart keyword suggestions by fixing typos for better results. Plus "Did You Mean" feature, Google style! Simple, Minimal, Fast and Smar …

Relevant Search replaces the default WordPress search with relevant results.

Fast fulltext search provided by Search Engine software replacing default WordPress functionality.

Provide autocomplete for search box by typeahead.js. 为您的网站搜索框添加搜索下拉词条建议功能。

Faster and Relevance WordPress Search result with low resource consuming

Modifies the native search to ignore HTML markup (block editor comments) and shortcodes

A better search engine for WordPress. Quickly and accurately.

This plugin provides relevant search results for Persian websites.

EasyfullsearchWP is the best way to improve searches, providing more relevant results by controlling many features. Most of fields can be indexed.

It allows to index the custom post types, taxonomies with custom fields easily.