Perhaps you should try some spelling variations:
"ambulante" » "ambulanten"
"ambulantenr" » "ambulantennr", "ambulanten", "ambulanter", "ambulantes"
"ambulantennr" » "ambulantennnr", "ambulanten", "ambulanter", "ambulantes"
"ambulantennnr" » "ambulantennnnr", "ambulanten", "ambulanter"

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: ("ambulante" OR (("ambulantenr" OR "ambulantennr") OR ("ambulantennr" OR "ambulantennnr"))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(\"ambulante\" or ((\"ambulantenr\" OR \"ambulantennr\") or (\"ambulantennr\" or \"ambulantennnr\")))".
• Removing quotes may allow a broader search: ( ambulante or (( ambulantenr OR ambulantennr ) or ( ambulantennr or ambulantennnr ))).
• Adding a wildcard symbol may retrieve word variants: ("ambulante" or (("ambulantenr" OR "ambulantennr") or ("ambulantennr" or "ambulantennnr")))*.