Take the phrase, "the three-body problem", and enter it into your favorite search engine's query box. Then click go. It's important to include those quotation marks. That tells the search engine to hunt for that exact string of words. Here's an example:
Mathematical mysteries: the three body problem
AFPhys, if you have better examples, would you please be so kind as to provide them?
I'm not a science type myself and I never heard of this (no reason why I should have, I guess), so my question may well be badly phrased, and it may be a stupid question, but how will I learn if I don't ask questions? :)
In the almost anonymous age of the internet and exponentially increasing knowledge, finding a truly stupid question is getting very hard. Ignorance is not the same as stupidity.
Thanks!