site:reddit.com "homes.com" Or if you meant to search (as opposed to the word):
(Note: no %3a — that's just the URL-encoded colon. Use a regular colon : .) site%3areddit.com+homes.com
site:reddit.com url:homes.com
site:reddit.com homes.com If you want to search for posts from homes.com linked on Reddit: site:reddit
The proper Google search operator for your query is: site%3areddit.com+homes.com