If searching in ESV for our father in Matt-John I get 20 hits in 15 verses. If checking "Match all word forms" I get 30 hits in 15 verses and thats OK.
If I search the same phrase but in swedish vår fader I get 31 hits in 15 verses in Bibel 2000. And now the crazy thing. If I check "Match all word forms" I get 12 hits in 6 verses. Checking "Match all word forms" get an exact search result. But unchecked the search will find vår fader and var fader.
This is just en example. This error belongs to our special characters åäö but it's a bit annoying when searching for one word and the result show words you don't search for.