* The play is very obscure or locally produced: Many high schools put on plays with original scripts or less widely known works that don't have a broad online presence.
* The title is slightly different: There might be a minor variation in the title.
* It's a working title: The play may have been performed under a different title.
To find it, you might try:
* Searching for local high school play programs: If you know the geographic area where the play was performed, searching for the school's drama department archives or local news archives might yield results.
* Checking online databases of plays: Sites that list published plays might have something similar, though it's unlikely to turn up an obscure high school production.
* Asking people who were involved: If you know anyone who was involved in the production (students, teachers, parents), they might be able to provide more information.