Perhaps you should try some spelling variations:
ihren grenzgebieten » ihre grenzgebiete
ihrer grenzgebiete » ihre grenzgebiete, der grenzgebiete, deren grenzgebiete
mathematical using » mathematics using, mathematical testing, mathematical beings
mathematical union » mathematical function, mathematical question, mathematical solution
mathematica using » mathematics using, mathematica doing, mathematica und
mathematical und » mathematica und, mathematical user, mathematical path
modern surveys » modern survey, oder surveys, modern purveyors

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