In May, she competed at the 2014 European Championships in Sofia, Bulgaria alongside Cagla Akyol, Janine Berger, Pauline Schäfer, and Sophie Scheder. Together they placed fourth in the team final. Individually Bui qualified to the vault final in 8th place with a score of 13.899, and to the uneven bars final in 7th place with a score of 14.500. In the vault event final Bui placed seventh with a score of 13.916, and in the bars event final, she scored 14.400 to finish seventh.