use the following search parameters to narrow your results:
- sub:sub
- find submissions in "sub"
- author:username
- find submissions by "username"
- site:example.com
- find submissions from "example.com"
- url:text
- search for "text" in url
- selftext:text
- search for "text" in self post contents
- self:yes (or self:no)
- include (or exclude) self posts
e.g. sub:pics site:imgur.com dog
advanced search: by author, sub...
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