Multiple search parameters?

[deeeeekun]

Is there a way to configure a custom search engine to accept multiple parameters?
e.g. https://www.reddit.com/r/%s1/search/?q=%s2

[philc]

There isn't. Presumably this would require modifying the Vomnibar UI to accept two parameters.

For that specific example, I'd suggest creating a separate custom search engine for each subreddit that you frequently search in.