If you are signed in you can save a search query by clicking the Save query link. Once saved, you can view and reuse the search from your Saved Searches section under your My Favorites list.
Note: You need to sign in to see the save query option and My Favorites list.
To view saved searches, click the Favorites icon in the far-right corner at the very top of the Search screen.
Click the Saved searches tab and click on the keywords you wish to view.