Perhaps you should try some spelling variations:
"function of 3 komplexe variable" » "function of 3 komplexen variablen", "function of 3 complex variables", "function of 5 komplexe variable"
"function of a complex variable" » "function of a complex variables", "function of a complete variable"

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: (("function of a complex variable") OR ("function of 3 komplexe variable")).
• Removing quotes may allow a broader search: (( function of a complex variable ) or ( function of 3 komplexe variable )).
• Adding a wildcard symbol may retrieve word variants: (("function of a complex variable") or ("function of 3 komplexe variable"))*.