Closely Related Ideas: Keyword Planner
Then on the left side, look for "show broadly related ideas." There, click on the little pencil icon and change that to OFF. Now the tool will respond with only closely related ideas to your initial search. This is much better. One of my criticisms of the tool is that it gives you too many ideas, too many matches, it goes too far afield for keyword ideas.
Someone at Google paid attention and now the tool allows you to at least focus it to closely related terms. We are still stuck with only getting data on exact matches, however, and not phrase or broad match. So in that sense the Keyword Planner is still pretty lame.
The old tool was far superior, and you wonder why Google forced this transition on everyone.