Type in a command, or "ls dictionary" to search all commands for "dictionary", etc.

man Roma_Shoprider_Sovereign_4_Electric_Mobility_Scooter

No manual entry for Roma_Shoprider_Sovereign_4_Electric_Mobility_Scooter.
To search for "Roma_Shoprider_Sovereign_4_Electric_Mobility_Scooter", try typing ls Roma_Shoprider_Sovereign_4_Electric_Mobility_Scooter.