Perhaps you should try some spelling variations:
"buena me matar, federico," » "buena mal matar, federico," (Expand Search), "bueno de matar, federico," (Expand Search), "buena o matar, federico," (Expand Search), "buena de mataro, federico," (Expand Search), "buena de mata, federico," (Expand Search), "buena a matar, federico," (Expand Search)
"buena fe mata, federico," » "buena de mata, federico," (Expand Search), "buena que mata, federico," (Expand Search)