Perhaps you should try some spelling variations:
statistic » statistics, statistik, statistische
statistical » statisticsal, statistikal, statistischeal, statistics
statisticsal » statisticssal, statistiksal, statistischesal
statisticssal » statisticsssal, statistikssal, statistischessal

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