One possible theme could be survival. If the girl was lost in a difficult environment, her struggle to stay alive would be a major theme.
The theme of self - discovery might also be present. If the 'lost' is more metaphorical, like she was lost in her thoughts or life situation in 2020, then through the events she might have discovered more about herself, what she really wants and values in life.
Another theme could be hope. Despite being lost, the girl might have held onto hope of being found, and those searching for her also had hope. And family could be a theme too. If she had a family, their worry and efforts to find her would play an important part in the story.
Another theme might be the power of community. Maybe the local community came together to search for her, showing unity and kindness.
Another theme could be the disillusionment. She goes there with high hopes but may find that Hollywood is not as glamorous as it seems, which is a common theme in stories about the entertainment industry.
One possible theme could be survival. If the girl is lost in a harsh environment, she has to figure out how to survive, which involves things like finding water and staying warm.
Another theme might be survival. If they lost their home or financial stability, they would have to find ways to survive and start anew. They would need to look for new places to live, new jobs perhaps. It could be about how they overcame the difficulties and rebuilt their lives.
A theme might also be about kindness. If in the 'lost fare true story', someone else helps the person who lost their fare, like a stranger paying for them or the driver letting them off without paying. This would highlight the theme of kindness in the face of a difficult situation.
One possible theme could be survival. If the girls faced difficult situations, their struggle to survive would be a major theme.
One possible theme could be disappointment. When things don't go as planned during a holiday, like bad weather ruining beach plans.
One possible theme could be survival. If the boy is lost, he has to find ways to stay alive, like finding food and shelter.
One possible theme is the destructive power of addiction. Cocaine can take over someone's life and ruin relationships. Another theme could be loss and regret, as the title implies someone has lost a girl because of cocaine. Also, it might touch on the theme of helplessness, where the person watching the girl succumb to cocaine addiction feels powerless to stop it.
Another theme might be power. If it's about awakenings, it could be about characters awakening to new powers or a greater understanding of their existing powers. This could lead to power struggles or new alliances within the 'Lost Girl' world.