Search Box in the article is a special plugin that allows to put the search form anywhere on the site running Joomla, so users will be easy to find anything. In addition, you can add as many forms as You need and place them directly in the article. In order to set the search, make sure that the extension is enabled.

Search Box in the Article – put searching inside the article anywhere

As you can see, this search form you can put in your articles.
Advantages
Many forms of search by simply entering the desired code.
No need to create separate modules.
The speed of work.