It has been like this for months, and I have had to use other search engines in the meantime. I don't know what I can do from this end, except keep reporting bad relevancy.
Regardless of what I'm searching for, DuckDuckGo offers results that do not include my search terms and do not have anything to do with my topic. Sometimes it is a mix of relevant results and completely irrelevant results. Sometimes it is only completely irrelevant results.