Non-alphanumeric characters for tags. Try searching on the “C ++” tag

In general, I tried to search by the “C ++” tag - it does not find anything, although there is one (for example, airworker.habrahabr.ru/blog/7747.html )

Apparently you need to add support for at least the "+" sign. Do not offend the same C ++ on an IT site, in fact :)