I've always wanted a tool that lets you highlight a text and quickly link to the top search results for that text. Now this feature is available in Google Docs and Google Slides: select some text, right-click and select "Link". Then you can pick one of top Google search results, one of your other documents or the headings/bookmarks that match the text selection.
Type something in the "link" box and Google will show results for the new text:
You can also use the keyboard shortcut (Ctrl+K) or use the link button from the toolbar.