This is a search engine that searches within specific topics, using lists that trustworthy people have put together. For example, if you want to know about telephones, but only about how they're engineered (or hacked), you search "phones /engineering" - and you'll only get results from webpages that are about engineering. But if you wanted to know what cool phones are out there, you could search "phones /gadgets."
This is Microsoft's version of Google. In tests, it has seemed to come up with very similar results. Might be worth trying if you're not getting results with Google, though!
