When we searching in German, search result are often empty. Not because of the search term in not present but because the way the tokenizer splits words.

For example :
I have a page named Spülmaschine (dishwasher). Unfortunately Confluence does not find the word "Spühlmaschine" (dishwasher) when I search for "maschine" (washer).

There is a very interesting article about this online which is very useful for improving our current search function.

http://engineering.wayfair.com/improving-german-solrlucene-search-results/