I've been getting more and more annoyed recently with Google returning search results that didn't contain the terms I'd searched for. So I looked into it, and they've removed the implicit + operator. Worse than that, they've removed it altogether so now you have to specify every search term in quotes!
The reasons why are fairly obvious (google plus) but I still think it's pretty annoying.
So I thought it might be worth trying another search engine. I started using duckduckgo thinking I'd be back to google pretty quickly but after about four weeks, I'm still using it. I've reverted to Google a couple of times, but it's easy to do so by prefixing your search with !g.
No adverts, and exactly what I searched for. Looks like a keeper...