Perhaps you should try some spelling variations:
d functionalanalysis » d funktionalanalysis, 8 funktionalanalysis, 2 funktionalanalysis
b funktionalanalysis » 8 funktionalanalysis, uber funktionalanalysis, der funktionalanalysis
_ functionalanalysis » 8 funktionalanalysis, functional analysis, der funktionalanalysis
v funktionalanalysis » 8 funktionalanalysis, der funktionalanalysis, die funktionalanalysis

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 (b funktionalanalysis))) OR (((_ functionalanalysis) OR (v funktionalanalysis))))%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%((((d functionalanalysis) OR (b funktionalanalysis))) or (((_ functionalanalysis) or (v funktionalanalysis))))%22".
• Adding a wildcard symbol may retrieve word variants: %((((d functionalanalysis) OR (b funktionalanalysis))) or (((_ functionalanalysis) or (v funktionalanalysis))))%22*.