noxup

Add a quick search form to find instantly any page or post with only few characters. With fuzzy-like handling of the term entered by the visitor.
IMPORTANT: 
This is not a full search engine. It searches only in post’s title and an optional surtitle and possible keywords if you set them with PHP filters. 
The post content is not indexed. This is the way it can be as fast at it is.
<h4>Features:</h4>
<ul>
<li>Find instantly any post or page when typing few characters</li>
</ul>
<h3>Developers</h3>
Posts and pages are automatically indexed and available for quick search.
Taxonomies are not indexed but can be added with a custom filter.
Custom post types can be added with another filter.
<h3>Notes</h3>
This plugin uses third-party libraries. For a complete list, see the <code>libraries.txt</code> file included with the plugin.

Nox Quick Search

Add a quick search form to find instantly any page or post with only few characters. With fuzzy-like handling of the term entered by the visitor.

Marios Alexandrou

This plugin allows you to dynamically (i.e. at the time when a page is generated) replace code and text from themes and other plugins with code and text of your choosing before a page is delivered to a user’s browser.
Because the find and replace happens in real-time no changes are needed to plugins or themes which means upgrades remain easy!
A <a href="https://infolific.com/technology/software-worth-using/real-time-find-and-replace-for-wordpress/#pro-version" rel="nofollow ugc">pro version</a> (a lifetime license is less than $15) with additional filtering options, setting export/import functionality, and the ability to modify admin pages is available.
Here are some common uses:
<ol>
<li>Want to selectively translate text that is being output by another plugin? You can do that.</li>
<li>Trying to tweak the text on a product or shopping cart page? No problem.</li>
<li>Hoping to remove footer text from a theme without modifying the theme? That’s easy.</li>
</ol>
Here are some <a href="https://infolific.com/technology/internet/handiest-wordpress-plugin-youve-never-heard-of/" rel="nofollow ugc">more examples</a>.
And some <a href="https://infolific.com/technology/internet/wordpress-seo-with-real-time-find-and-replace-plugin/" rel="nofollow ugc">tips for those interested in on-page SEO</a>.
Remember, all of the above can be done WITHOUT modifying themes or plugin files so you’ll always be able to upgrade them without having to worry about losing custom edits.

Real-Time Find and Replace


Works realtime and can parse regex



Handy note:use / or ~ start AND end, use \1 \2 etc to replace with the ( ) groups


Works as advertised

Set up find and replace rules that are executed AFTER a page is generated by WordPress, but BEFORE it is sent to a user's browser.

Nox Quick Search vs Real-Time Find and Replace