score:6
According to Horario de Buses the bus terminal is called "Terminal Rodoviario de Valparaíso" and the Google Maps insert calls it "Copropietarios Terminal Rodoviarío de Valparaíso". Romani Buses calls it "Ag.Terminal Valparaiso". It seems the correct address is
Av. Pedro Montt 2831, Valparaiso, Región de Valparaíso
Which looks to be right next to Google Map's entry for Terminal Rodoviario Valparaiso (though they list the address as Pedro Montt 2860). Either address should be close enough.
I've submitted an update to Google Maps for the correct address.