Query translation memory?
Once in a while, the translation memory does not yield anything, or not the right messages, even though it obviously could. Most often, a minor spelling change of the original would likely do, such as omission or addition of punctuation, grammatical alterations, or substitution of a synonym. I wonder if we cannot have an extra search field in the message editor that is preset with the message in question and allows us to make these kind of amendments and hit "search again"?
ElasticSearch is currently overloaded, so I wouldn't take today's behaviour as representative. Most of the issues are tracked at phabricator:T48484.
As for adding more interface elements, we know that TUX maintainers are firmly opposed...