Perhaps you should try some spelling variations:
appendix mathematische » appendix mathmatical, anwendung mathematische, appendix b:mathematical
mathematical science » mathematical sciences, mathematics science, mathematical geosciences
appendix mathematics » appendices mathematics, appendix mathmatical, appendix b:mathematical

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: (( appendix mathematical science ) OR ( ((appendix mathematics) OR (appendix mathematische)) science )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( appendix mathematical science ) or ( ((appendix mathematics) OR (appendix mathematische)) science ))".
• Adding a wildcard symbol may retrieve word variants: (( appendix mathematical science ) or ( ((appendix mathematics) OR (appendix mathematische)) science ))*.