How to use game explorer

Under "Study Plans for Beginners" on this page http://www.chess.com/article/view/study-plan-for-beginners-the-opening2 it says "Use Game Explorer to review 5 games..."

But it doesn't give any instructions on how to review the games.

Using Queen's Gambit declined I played through until some master games showed up in the list, and I clicked the link that said "find similar games." But when I did it said:

"Your query returned too many results. Please narrow your search and try again."

Any ideas on how to do it?

Right, but it only lets you find the games if you're looking at a position which has fewer than a certain number of games. If there are more than a few thousand games, it won't show you the game list because there are too many. So go deeper into the game and further into the variations, and soon there will be fewer games in the database, and it will be able to produce a list.

Thanks. That makes sense. I will try that.