Order of results is unexpected

[azaroth42]

If I search for (e.g.) "Christchurch, New Zealand", then the first entry in the list isn't Christchurch, it's New Zealand. Yet the second hit is Christchurch, New Zealand. I don't understand which ranking algorithm would list the country without the city name higher than the more specific, matched place within the country.

[kgeographer]

The current Elasticsearch match query finds records with any of the words in the query, so New Zealand is returned (as are any records with 'new' in their variants. There is no ranking performed in ES, but result list is sorted by # of links (biggest set/graph). This was a compromise intended to return expected results for 'Mount {toponym}' and '{toponym} Mountain'. The implementation could certainly use improvement from an ES expert! Not closing -- adding 'enhancement' label. thx