# Using a string operator to find words
df['email_body'].str.contains('money laundering')

# Select data that matches 
df.loc[df['email_body'].str.contains('money laundering', na=False)]

# Create a list of words to search for
list_of_words = ['police', 'money laundering']
df.loc[df['email_body'].str.contains('|'.join(list_of_words)
, na=False)]

# Create a fraud flag 
df['flag'] = np.where((df['email_body'].str.contains('|'.join
(list_of_words)) == True), 1, 0)