I think this is probably something you'll have to take up with the Chrome support staff or on one of their forums. I'm afraid my expertise is limited to Firefox but after a bit of experimenting in Chrome and searching around in DuckDuckGo, I have a couple suggestions:

If you haven't already, go to and look for a small popup at the bottom of the page about setting DuckDuckGo as the default search engine. You can also review this article on various ways of installing DuckDuckGo for Chrome on a desktop.

If these fail, you could perhaps try installing the DuckDuckGo extension for Chrome. It offers various extra features (including Instant Answers on Google and Bing results pages) and will hopefully add back the search functionality.

I hope these help.
Good luck,
posted by MyUser 3 years and 19 days ago Link