Perhaps you should try some spelling variations:
statistic » statistical, statistische
statistics » statisticals, statistisches
statisticals » statisticalals, statistischeals
statisticalals » statisticalalals, statistischealals

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