Perhaps you should try some spelling variations:
d functionalanalysis » _ functionalanalysis, 8 funktionalanalysis, b funktionalanalysis
d funktionalanalysis » 8 funktionalanalysis, b funktionalanalysis, v funktionalanalysis
functional analyses » functional analysis, function analysis, functional analytic
functionl analysis » functional analysis, function analysis, functions analysis

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