Search term with full stop not working


I am trying to search for tweets with a search term that includes a full stop. It’s a company name that includes a full stop. It works on the ‘front end’, i.e. if you do a ‘normal’ search on but when I search for it via the API I only get random stuff an not a single ‘proper’ match. Is there anything I need to do to ‘escape’ the dot? (I have tried this on the console, too, and it doesn’t work and yes, I do encode the query in the api request)