Perhaps you should try some spelling variations:
order mathematical » other mathematical, modern mathematical, cover mathematical
der mathematical » her mathematical, mer mathematical, over mathematical
die grenzgebiete » ihre grenzgebiete, im grenzgebiet, und grenzgebiete
cover surveys » care surveys, other surveys, level surveys
oder surveys » der surveys, other surveys, user surveys

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) OR (order mathematical)) und die grenzgebiete. 2. folge, a series of ((oder surveys) OR (cover surveys)) in mathematics.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ergebnisse ((der mathematical) or (order mathematical)) und die grenzgebiete. 2. folge, a series of ((oder surveys) OR (cover surveys)) in mathematics".
• Adding a wildcard symbol may retrieve word variants: ergebnisse ((der mathematical) or (order mathematical)) und die grenzgebiete. 2. folge, a series of ((oder surveys) OR (cover surveys)) in mathematics*.