Hello, czech customer.
do you use as indexing language Czech? If yes did you realize that the jql searching is not accurate and there are some words that are missing that the search cannot find even it should?
If yes see this defect: https://jira.atlassian.com/browse/JRASERVER-45804 and vote and add yourself as affected user so we can hope they will fix it.
You can simply try.
- create issue summary like "Nové přihlášení" or "Moje SE značky"
- search jql "summary ~ Přihlášení": it will give you your issue
- search jql "summary ~ se": it will give you no results
- search jql "summary ~ Nové": it will give you no results
- search jql "summary ~ Nové přihlášení": it will give you your issue.
Best Regards
