Perhaps you should try some spelling variations:
ihre grenzgebiete » ihren grenzgebieten, die grenzgebiete, im grenzgebiet
modern surgerys » modern surgeon's, modern survey, modern singers
modern surgery » open surgery, modern slavery
model surgery » bowel surgery, oral surgery, level surgery
mathematik » mathematical

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 mathematik und ihre grenzgebiete. 2. folge, a series of ((((modern surgerys) OR (model surgery))) OR (modern surgery)) in mathematics.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ergebnisse der mathematik und ihre grenzgebiete. 2. folge, a series of ((((modern surgerys) OR (model surgery))) or (modern surgery)) in mathematics".
• Adding a wildcard symbol may retrieve word variants: ergebnisse der mathematik und ihre grenzgebiete. 2. folge, a series of ((((modern surgerys) OR (model surgery))) or (modern surgery)) in mathematics*.