We need to install the Highlight Search Terms plugin before starting this recipe. Follow these steps to install and activate the plugin:

1. Log in to Dashboard as an administrator.
2. Click the Plugins | Add New button.
3. Search for Highlight Search Terms in the Search plugins field.
4. Once the plugins are listed, click the Install Now button.
5. Click the Activate button to activate the plugin.

Now, you are ready to start this recipe.