Hello,
Thanks for getting in touch with us.
Have you checked if your title/description is properly set up in the page source:
https://i.rankmath.com/HwXR1o
You can use this tool for the same as well: https://www.heymeta.com/
If it matches your settings, then you must check if Google has seen the changes already or not.
For that, please check when the Google cache was updated for that page:
a.
b.
If the cache date is from before adding the new meta description, then you just have to wait for Google to re-crawl and re-index the page with the new info. If the date is after you made the changes,
Do note that if everything’s fine and Google still decides to show a different meta title/description for your search keyword, there is nothing you can do as Google sometimes ignores the custom meta info altogether and show something from the page’s content that matches the search intent better.
The best you can do is optimize your meta tags to try and match the intent of the search/keyword.
You can read more about it here
https://support.google.com/webmasters/answer/35624?hl=en
This section sheds light on that:
Why the search result title might differ from the page's <title> tag
Concerning the missing sitelinks search box, Rank Math adds the Sitelinks search box only to the homepage. We are aware some SEO plugins add it to the entire website but that is not the correct way to do it.
It only needs to be present on the homepage as per Google:
https://developers.google.com/search/docs/data-types/sitelinks-searchbox#guidelines
Screenshot: https://i.rankmath.com/Un6GF3
Hope that helps. If you have any further question(s), please let us know. Thank you.