Summary

Searching for the substring of the word through use of regular expression as below will return 0 results if the indexing language is German.

/.*Stütz.*/
/.*Stuetz.*/
Stuetz*
Stütz*

Steps to Reproduce

1. Create page and as a content add words "Stuetzpunktlogistik" and "Stützpunktlogistik".
2. Make sure that in Confluence Administration indexing language is set to German.
3. Search for /.Stütz./, /.Stuetz./, Stuetz* or Stütz*

Expected Results

Created page will be displayed.

Actual Results

You will see no results.

Workaround

Changing indexing language will display page in search result properly.