Does the plug-in support Korean search?
It should work with Korean because it works with UTF-8 encoding.
Correct, you can justify the styling of the Smart Excerpt part using CSS block in the WPFTS Pro Settings / Search & Output. Your webmaster can use it. Other parts of the search results page are not accessible for the plugin.
No one has replied
Sorry, I just detected your message.
Please could you follow this small guide? If it does not help, write to me here again. I will need to know the theme you're using and, possibly, the URL of your website to make some checks.
Thank you, works like a charm. Much appreciated!