Perhaps you should try some spelling variations:
statistisches » statistische, statistischer, statistisch
statistischen » statistische
statistiky » statistik, statistika, statistiken
statistic » statistics, statistik, statistical

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: ((statistisches OR statistischen) OR (statistiky OR statistic)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((statistisches OR statistischen) or (statistiky or statistic))".
• Adding a wildcard symbol may retrieve word variants: ((statistisches OR statistischen) or (statistiky or statistic))*.