This happens when I want any deep technical treatment of a topic.
There are hundreds of SEO-optimized websites that basically post obvious shallow information and still achieve to trick search engine algorithms with great effort. I don't want those shallow information articles. There's wikipedia always for surface introduction of the topic.
Examples of such sites include GeeksForGeeks, Many medium blogs, DZone, ZDNet etc..
Are there any search tricks / filters / alternative search engines or proxying search engines that allow to avoid bullshit tech content?