Perhaps you should try some spelling variations:
mathematical using » mathematica using, mathematics using, mathematical testing
ihre grenzgebiete » ihren grenzgebieten, die grenzgebiete, und grenzgebiete
der mathematical » her mathematical, mer mathematical, order mathematical
modern survey » modern surgery, models survey, modeling survey
model survey » models survey, model surgery, moral 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 using ((ihre grenzgebiete) OR (im grenzgebiet)). 2. folge, a series of ((model survey) OR (modern survey)) in mathematics.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ergebnisse der mathematical using ((ihre grenzgebiete) OR (im grenzgebiet)). 2. folge, a series of ((model survey) or (modern survey)) in mathematics".
• Adding a wildcard symbol may retrieve word variants: ergebnisse der mathematical using ((ihre grenzgebiete) OR (im grenzgebiet)). 2. folge, a series of ((model survey) or (modern survey)) in mathematics*.