Perhaps you should try some spelling variations:
mathematical function » mathematical functions, mathematical foundation, mathematical foundations
ihren grenzgebieten » ihre grenzgebiete
mathematical union » mathematical question, mathematical solution, mathematical foundation
der grenzgebiete » die grenzgebiete, dem grenzgebiet, ihre grenzgebiete
ergebnisse her » ergebnisse h, ergebnisse haben, ergebnisse host
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 her ((mathematical union) OR (mathematical function)) ((ihren grenzgebieten) OR (der grenzgebiete)). 2. folge, a series of modern surveys in mathematics.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ergebnisse her ((mathematical union) OR (mathematical function)) ((ihren grenzgebieten) or (der grenzgebiete)). 2. folge, a series of modern surveys in mathematics".
• Adding a wildcard symbol may retrieve word variants: ergebnisse her ((mathematical union) OR (mathematical function)) ((ihren grenzgebieten) or (der grenzgebiete)). 2. folge, a series of modern surveys in mathematics*.