But a couple of things: I've just tried it twice and both time Addis Ababa was not accepted as one of the spellings - surely Ababa and Abeba should both be acceptable?
Second, Dusseldorf gave me a surprise and your own link produces a result that lists it as the 7th largest city in Germany (https://citypopulation.de/Deutschland-Cities.html). The order given there is: Berlin, Hamburg, Munich, Cologne, Frankfurt, Stuttgart, Dusseldorf.
"Addis Ababa" is one of the official spellings of the name, along with "Addis Abeba", and it should be "Ho Chi Minh City", and not "Saigon", as it has not officially gone by that name for decades (and even if Ho Chi Minh City is a type in. If "Burma" is now Myanmar, then "Saigon" should be Ho Chi Minh City.
- Addis Ababa is misspelled
- The current name of Saigon is Ho Chi Minh City
- Dusseldorf is not the biggest city in Germany. https://en.wikipedia.org/wiki/List_of_cities_in_Germany_by_population
But a couple of things: I've just tried it twice and both time Addis Ababa was not accepted as one of the spellings - surely Ababa and Abeba should both be acceptable?
Second, Dusseldorf gave me a surprise and your own link produces a result that lists it as the 7th largest city in Germany (https://citypopulation.de/Deutschland-Cities.html). The order given there is: Berlin, Hamburg, Munich, Cologne, Frankfurt, Stuttgart, Dusseldorf.