The documentation says this is a "Label for value indicating the total number of results". In English (and in every other language I know anything about), such a label should be invariable, and say "Total results" even if the number of results is 1. That is, "total results" is just short for "total number of results", so "total result: 1" would be as wrong as "total number of result: 1".

Since some other languages may need PLURAL here, this should be changed to "Total {{PLURAL:$1|results}".

URL: https://translatewiki.net/wiki/Wikimedia:Global-search-total-results/ia