In November Bui participated at the Leverkusen Cup alongside Daria Bijak and Janine Hardt where she helped Germany finish first in the team competition ahead of Belgium and Mexico.

In April Bui competed at the European Championships in Volos alongside Daria Bijak, Katja Abel, Jenny Brunner, and Julia Hänel where Germany finished eleventh in qualifications and were the third reserve for the team final.

During event finals she won gold on floor exercise, silver on vault and balance beam, and placed fourth on uneven bars.

In October she competed at the Glasgow Grand Prix where she won silver on vault, bronze on uneven bars, and placed fifth on floor exercise.

[15] In March she competed at the Cottbus World Cup where she placed second on floor exercise behind Sui Lu of China, fourth on vault, and seventh on uneven bars.

In November Bui competed at the Stuttgart World Cup where she won gold on uneven bars, silver on floor exercise behind Sui, and bronze on vault behind Jana Komrsková and Ariella Käslin.

[19] In March Bui competed at the Cottbus World Cup where she won bronze on the uneven bars behind Yao Jinnan and Elisabeth Seitz.

She improved her score to 14.675 to win the bronze medal in the final behind Beth Tweddle of Great Britain and Tatiana Nabieva of Russia.

[21] At the German National Championships Bui placed second in the all-around behind Elisabeth Seitz, third on floor exercise, and fourth on vault, uneven bars, and balance beam.

[22] She was later named to the team to compete at the 2011 World Championships alongside Seitz, Oksana Chusovitina, Lisa Katharina Hill, Nadine Jarosch, and Pia Tolle.

[24] In March Bui competed at the Cottbus World Cup where she won bronze on floor exercise behind Diana Chelaru and Luiza Galiulina and placed fourth on balance beam.

They won the bronze medal behind Elisabeth Seitz and Fabian Hambüchen of Germany and Giulia Steingruber and Claudio Capelli of Switzerland.

[34] In May, she competed at the 2014 European Championships in Sofia, Bulgaria alongside Cagla Akyol, Janine Berger, Pauline Schäfer, and Sophie Scheder.

[35] At the German National Championships in August, she claimed the gold medal in the all-around and floor exercise competitions, as well as taking silver on uneven bars and bronze on vault, and placing fifth on beam.

[39] In late November, she competed at the Stuttgart World Cup, edging out seasoned competitors such as Vanessa Ferrari and Aliya Mustafina to win the bronze medal in the all-around competition, finishing behind Iordache and Jessica López.

[40] In April, Bui competed at the Bundesliga competition in Mannheim, Germany, where she performed on vault, uneven bars, and floor exercise.

While there she won silver on the uneven bars behind Jessica López and tied with Rebeca Andrade and on floor exercise behind Daniele Hypólito and she placed sixth on balance beam.

[43] Bui was selected to represent Germany at the European Championships alongside Sarah Voss, Lina Philipp, Maike Enderle, and Amélie Föllinger.

[44] In June she competed at the German National Championships where she placed fourth in the all-around and on balance beam, third on uneven bars, and second on floor exercise.

[51] In March Bui competed at the American Cup where she placed fourth behind Ragan Smith, Asuka Teramoto, and Mélanie de Jesus dos Santos.

[53] In April Bui competed at the European Championships where she placed fifth in the all-around behind Ellie Downie, Zsófia Kovács, de Jesus dos Santos, and Elena Eremina.

[60] At the European Championships Bui, along with Leah Griesser, Emma Höfele, Pauline Schäfer, and Sarah Voss, finished 10th in qualification and therefore were the second reserve for the team final.

[66] Bui ended the season competing at the Cottbus World Cup where she finished seventh on uneven bars and sixth on floor exercise.

[72] In September Bui was named to the team to compete at the 2019 World Championships in Stuttgart alongside Voss, Petz, Elisabeth Seitz, and Sophie Scheder (later replaced by Pauline Schäfer).

[74] At the World Championships Bui competed on vault, uneven bars, and floor exercise during qualification and helped Germany place ninth as a team.

[77] During the all-around final Bui and compatriot Elisabeth Seitz wore unitards opposed to the standard leotard that is common in women's artistic gymnastics.

[78] On 13 June Bui was selected to represent Germany at the 2020 Summer Olympics alongside Elisabeth Seitz, Sarah Voss, and Pauline Schäfer.

[80] In June, Bui competed at the German Championships, where she won the gold in the uneven bars and floor exercise finals, and took the silver in the all-around behind Sarah Voss.