The answer you got a sigil here would probably work as well for this.
As it wears off or doesn’t work, you may need to consider that your will to remove the result is less s=will than irritation, and that’s not enough to override the software. You could try changing up your search criteria or trying a different search engine or browser. Like try Bing or Quant instead of google.
Did you know you can also configure the browser to block it for you? Many browsers have a “safe” searching or “parental controls” aimed at parents who want to block adult sites from their kids browsers, you can use that to block any site.