title: How to filter the same column twice obtaining both results while filtering through another column?
body: <p>Hello everyone i have the following filter</p>
  <pre><code>filt = (df['Category'] == 'onboarding start view') | (df['Category']=='onboarding return-start view') &amp; (df['CampaignSource'] == 'undefined-origin')
  engajed_und=df.loc[filt]
  </code></pre>
  <p>Basically i want to grab both the categories that are equal to the following strings, and have the column campaign_source as 'undefined_origin' but it seens the filter on campaign source is non functional, can someone explain to me why my logic is faulty here? And the filter on category is functional.</p>
  <p>End result:
  <a href="https://i.stack.imgur.com/iLD9R.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/iLD9R.png" alt="enter image description here" /></a></p>