I intentionally didn't use Google as an example. Major search engines obviously have tricks to index things like this, though I'll note there are still gaps. For example, googling "v language data structures" produces nothing related to V itself.
That said, I'm specifically talking about trying to search things that Google doesn't index, like a Discord server, an internal wiki, or a specific non-textual filter on a public site. As mentioned, I tried searching for a specific Twitter thread about V from people I follow and didn't find it because they just called it "V", which on Twitter returns a ton of results for things like court cases.
I'm sure if I spent forever massaging my query I could track it down, but if it was called "vlang" or "VL" or something similarly distinct it wouldn't be a problem. For example, PHP, Perl, OCaml, SQL, Prolog, etc. are all quite easy to find regardless of where and how I'm looking.