Searx is a meta search engine which means that it is not a search engine itself it collects searches from different search engines on behalf of you.So your idenity does not get reveal and you stay private. For example it takes images from bing which is better than google in image search and it takes files from many torrent sites you can customize it to take what from what.You can use a searx space from searx.space or you can host your own space.