Perhaps you should try some spelling variations:
uber funktionalanalysis » der funktionalanalysis, die funktionalanalysis, und funktionalanalysis
d functionalanalysis » _ functionalanalysis, d funktionalanalysis, b funktionalanalysis
8 funktionalanalysis » b funktionalanalysis, v funktionalanalysis, _ functionalanalysis

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: %((d functionalanalysis) OR (((uber funktionalanalysis) OR (8 funktionalanalysis))))%22.
• Adding a wildcard symbol may retrieve word variants: %((d functionalanalysis) or (((uber funktionalanalysis) or (8 funktionalanalysis))))%22*.