Swami

Agreed ...

Google, sadly. In my personal experience I haven't had nearly as much luck finding obscure things I'm looking for on DuckDuckGo or Bing. Unfortunately these are companies we're talking about and they all have to make money one way or another, and that usually means targeted ad revenue these days. Google still has the most highly developed and comprehensive search algorithms of them all though.

I think Google is still the best, and DuckDuckGo is mainly focused on privacy, not search results. Perhaps you should modify your search terms to filter things you know you don't care about (I don't need to ever see Forbes contributor blogs, for example).

Look in the Advanced section of Google's help pages, or this form

https://www.google.com/advanced_search