@nolanmagee4 - While there is an error in that example, it isn’t because of the ‘:’ symbol, although I am seeing that this does actually yield results.
While we do require the q parameter, you can technically pass along just the q without a value if you have other parameters.
Here is what this URL should be. I will be updating this in our docs today:
https://api.twitter.com/1.1/search/tweets.json?q&geocode=-22.912214,-43.230182,1km&lang=pt&result_type=recent
I suggest that you continue using ‘=’ as much as possible, as that is our best practice.