How to get Google Sitelinks on a website? [closed]

I think you are referring to "sitelinks". Google generally does not make it public exactly how those are created (to prevent abuse, for example). I suspect you need the subpages to be very strongly linked, perhaps about the same amount or more than the top-level page. No way to know for sure. The best way to get your website looking good in Google is to make it as user-friendly and human-friendly as possible. I think Google typically looks for clues as to whether the website will be relevant to humans and very likely penalizes content that detracts from the interface just to become search-engine optimized.