I have always been in awe of WordPress and have come to love it since I started using it few years back. However, one of the biggest problems I have had with WordPress is their search; both in the frontend as well as in the backend.
While you can always improve your frontend search and add relevancy to it by either using Google Custom Search or a plugin like Better Search, there are not many options for the backend, or at-least my searches led me to few or none.
My dislike for the WordPress backend search grew more when I wanted to search for some articles which had a particular title but could never see them in the results for my queries. However, I did find a really good alternative after spending a decent amount of time searching for it on Google.
The extension called Search Regex is quite a life saver and is definitely better than the default WordPress backend search for posts. The plugin allows you to search only titles, within posts and comments, post meta values, post excerpts, post URLs and more.
One of the first things I noticed with the plugin was that it works really well and does it’s job. However, as always humans are usually never satisfied with what they get and so was I. I would have loved the plugin to integrate and replace the default backend search in WordPress and would like to have it on the WordPress Edit posts page itself. The reason for this is that, the way the plugin currently works, you can only edit a single post at a time.
On the other hand, WordPress backend search allows users to edit multiple posts at once. Other than this, the plugin also allows you to Search and Replace text within your posts. This can come in very handy if you want to update a link or text in a post. Best of all, the plugin supports regex (Regular Expression). However, I would avoid using that because it could really create problems if something goes wrong or you use a bad regex, in-fact the plugin itself advices you about it.
Rest assured, Search Regex is an excellent plugin to address the annoyance called "WordPress Search". Go ahead and download it from here, you won’t be disappointed at all.