Perhaps you should try some spelling variations:
mathematical using » mathematica using, mathematics using, mathematical testing
mathematical und » mathematical union, mathematical user, mathematical path
ihr grenzgebiete » ihre grenzgebiete, ihrer grenzgebiete, der grenzgebiete
mathematica und » mathematica _, mathematica a, mathematica 2
modern surgery » open surgery, modern slavery
modern survey » models survey, model survey, modeling survey

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: ergebnisse der ((((mathematical und) OR (mathematica und))) OR (mathematical using)) ihr grenzgebiete. 2. folge, a series of ((modern survey) OR (modern surgery)) in mathematics.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ergebnisse der ((((mathematical und) OR (mathematica und))) or (mathematical using)) ihr grenzgebiete. 2. folge, a series of ((modern survey) or (modern surgery)) in mathematics".
• Adding a wildcard symbol may retrieve word variants: ergebnisse der ((((mathematical und) OR (mathematica und))) or (mathematical using)) ihr grenzgebiete. 2. folge, a series of ((modern survey) or (modern surgery)) in mathematics*.