The Canaries' manager told BBC Sport: "Credit to Swansea they were better than us from start to finish. They always threatened and always looked like scoring. At the moment we are finding it very difficult to get that right formula away from home.
"We tried to continue the form and the way we played in our win last week but Swansea are a very good side, they have good offensive options and we could not cope with that today.
"We had to defend well to stop them at times and they never allowed us to be in the game ourselves."
The result leaves Norwich 15th in the Premier League table, while Swansea climb to 13th.