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