Konstantin Obenland

This plugin lets you provide the user with search suggestions based on the information entered in the search field.
It adds an AJAX call to the search form, returning matches for the current search query from the database. 
There is no change of template files necessary as this plugin hooks in the existing WordPress API to unfold its magic.
<h4>Translations</h4>
I will be more than happy to update the plugin with new locales, as soon as I receive them! 
Currently available in:
<ul>
<li>English</li>
<li>Deutsch</li>
<li>Czech</li>
</ul>
<h3>Filter Reference</h3>
wpss_search_query_args (array|string)
<blockquote>
The query args, passed to <a href="https://codex.wordpress.org/Function_Reference/WP_Query" title="WP_Query in the WordPress Codex" rel="nofollow ugc">WP_Query</a>, either as an array or a string. 
 An array with the default query args and the current search query are passed to the filter.
</blockquote>
wpss_search_results (array)
<blockquote>
An array with the result strings as values. An array with the default results and the WP_Query object are passed to the filter.
</blockquote>

WP Search Suggest

С плагином интернет-магазина WP Shop работает отлично.

Чтобы саджест-поиск не искал в ненужных типах записей в файл functions.php достаточно включить функцию-фильтр, в которой настроить WP Search Suggest под себя:


    `/*
    * Customize plugin WP Search Suggest
    */
    function wp_search_suggest_custom($query_args) {

        $query_args += [
            'post_type' => ['post', 'page'],
            'posts_per_page' => 10,
        ];

        return $query_args;
    }
    add_filter( 'wpss_search_query_args', 'wp_search_suggest_custom');`

Отличный плагин для поиска по товарам с подсказками

I like this simple Plugin, I only would wish to have more results or to set an option for this ;)

Simple is the Best!

Great and clean plugin!

Provides title suggestions while typing a search query, using the built-in jQuery suggest script.

ikad

This plugin uses the Yahoo Suggest API with an abstraction of jQueryUI’s autocomplete widget to show suggestion results for WordPress internal search queries.
It adds an AJAX call to the search form via the WordPress API and provides suggestion feedback as you type. The user can click on the suggestion trends which results in a WordPress search for that query.

WP Yahoo Suggest

Provides suggestions while typing a search query using the Yahoo Suggest API.

WP Search Suggest vs WP Yahoo Suggest