ผลลัพธ์ใดมีเหตุการณ์ Strikeforce และวิธี Ko (เตะกลมคู่)
Which Result has the Event, Strikeforce, and Method, Ko (double roundhouse kick)?
df = pd.DataFrame(columns=['result', 'event', 'method'])
df[(df['event'] == 'strikeforce') & (df['method'] == 'ko (double roundhouse kick)')]['result']