is was a search engine that doesn't ignore special characters. I was always frustrated that I couldn't search for symbols like >> and && using Google or the custom Stack Overflow search, so I made a search engine for programmers. It currently searches mostly Stack Overflow pages, with plans to eventually index a much wider range of programming websites (including symbols, of course).
This is a problem that I know a lot of other Stack Exchange users have run into. It is frequently asked about:
MSE: Is it possible to search for punctuation/special characters?
SO: How can I use a search engine to search for special characters?
WebApps: How to search the internet for terms with special characters
It uses the open source Apache Nutch and Apache Solr for crawling, indexing, and searching, with a small PHP backend for processing user queries.
Nutch and Solr, which power the backend of SymbolHound, both use the open source Apache license.