Perhaps you should try some spelling variations:
ihrer grenzgebiete » ihren grenzgebieten, der grenzgebiete, deren grenzgebiete
ihre grenzgebiete » ihren grenzgebieten, die grenzgebiete, im grenzgebiet
der mathematical » mer mathematical, order mathematical, over mathematical
her mathematical » mer mathematical, other mathematical, over mathematical
modern purveyors » modern survey, modern purgatory, power purveyor
modern surveys » modern survey, oder surveys, modern surgery

Try widening your search to All Fields.

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: %22ergebnisse ((der mathematical) OR (her mathematical)) und ((ihrer grenzgebiete) OR (ihre grenzgebiete)). 2. folge%2 a series of ((modern surveys) OR (modern purveyors)) in mathematics%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%22ergebnisse ((der mathematical) OR (her mathematical)) und ((ihrer grenzgebiete) or (ihre grenzgebiete)). 2. folge%2 a series of ((modern surveys) or (modern purveyors)) in mathematics%22".
• Adding a wildcard symbol may retrieve word variants: %22ergebnisse ((der mathematical) OR (her mathematical)) und ((ihrer grenzgebiete) or (ihre grenzgebiete)). 2. folge%2 a series of ((modern surveys) or (modern purveyors)) in mathematics%22*.