ผลการแข่งขันกระชับมิตรที่ปอร์โต้มีผลวันไหน?
What date has a result of win, in a friendly competition in Porto?
df = pd.DataFrame(columns=["date", "location", "result", "competition"])
df.loc[(df['result'] == 'win') & (df['competition'] == 'friendly') & (df['location'] == 'porto'), 'date']