Perhaps you should try some spelling variations:
"functions of a complete variable" » "functions of a komplexe variable", "functions of a complete verifiable", "functions of a complex variables"
"function of a complex variable" » "function of a complex variables"

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