Apsara Aruna

This is customized your search form to the full screen search box.
How to use it 
*Only you have to do after the installation, add custom link to you menu and type url to ‘#search’. you can put Link text as you wish.
Also see my other plugins 
* <a href="https://wordpress.org/plugins/widget-youtube-subscribtion/" title="Easy Subscribe Button Widget" rel="ugc">Easy Subscribe Button Widget</a> 
* <a href="https://wordpress.org/plugins/embed-page-facebook/" title="Easy Embed Page Widget" rel="ugc">Easy Embed Page Widget</a> 
* <a href="https://wordpress.org/plugins/browser-scroll-bar/" title="Browser Scroll Bar" rel="ugc">Browser Scroll Bar</a>

Easy Full Screen Search

This is customize you search form to full screen search box.

Cynob IT Consultancy

This plugin provides search form that will search any post with autocomplete functionility.
Features
<ul>
<li>Shortcode based</li>
<li>Easy to use</li>
</ul>

Autocomplete Post Search

Wow, it is fantastic plugin I have ever seen. I am very happy that it solved many critical situation in my website. I prefer to use it each time in my new website. 
Thanks NetGo.



Fantastic plugin!!!

This plugin provides search form that will search any post with autocomplete functionility.

Easy Full Screen Search vs Autocomplete Post Search