Search Results Page Edit / Nothing Found

Hello

I’m having a hard time editing my search results page, I don’t like the wording when nothing is found.

I’ve tried editing search.php, loop-search.php with no luck.

Trying to edit the language here:
Nothing Found
Sorry, the post you are looking for is not available. Maybe you want to perform a search?

and this wording

For best search results, mind the following suggestions:

Always double check your spelling.
Try similar keywords, for example: tablet instead of laptop.
Try using more than one keyword.

thank you