Because i do not get an answer - i send what i found.
- If you use wildcards - do not use " symbols. It inserts "match_phrase" in query. Use like this fileld:get*
Good explanation here and in related paper Wildcard query not working as expected - But even wildcards and regexes not working as expected. Через жопу. I found, that escaping non-letter symbols can help. So for me this query works:
Text:"Get-System" also you must use escaping with the space like text:"adam\moran"