Convert the the text like director name and cast name to a search keyword

is The director name a tag or category or just text in your post content?

its just text

WordPress searches titles and post_content when you put “?s=” behind your url. example (post title): https://www.a2zmoviez.com/?s=Fellowship+of+the+Ring

I get “nothing found” if I do the same with the directors name Peter Jackson. example (post_content): https://www.a2zmoviez.com/?s=Peter+Jackson

Are these custom post type posts or is “Peter Jackson” a custom field value?