如果搜索結果噪音太多，一般加哪些 site 前綴降低噪音？

[weakish]

Is it just me, or have search results become absolute garbage for basically every site? It's nearly impossible to discover useful information these days (outside the ArchWiki).

-- Edward Snowden

我目前用的前綴是：

(site:reddit.com OR site:archlinux.org OR site:stackoverflow.com OR site:stackexchange.com OR site:github.com OR site:github.io) KEYWORD