The search for "happiness" delivered 3 verses in 2 songs on 2 records.
The dragon searched for the following: "happiness" as keywords
Here are the matching verses:
Black Sabbath: Live Evil
12. Paranoid
I Need Someone To Show Me
The Things In Live That I Can't Find
I Can't See The Things That Make True Happiness
I Must Be Blind
Make A Joke And I Will Sigh
And You Will Laugh And I Will Cry
Happiness I Cannot Feel
And Love To Me Is So Unreal
Dio: Killing The Dragon
9. Before The Fall
But somewhere down the line
The happiness you'll find
Will crash into a wall
Just before the fall