Perhaps you should try some spelling variations:
duo literatur » o literatur, iso literatur, abo literatur
literatur ab » literatur a1, literatur am, literatur a3
1 literatur » 11 literatur, 1 literature
17 amanda » 1 amanda, 159 amanda, 613 amanda
agenda ii » agenda iii, agenda i, agenda iv
amanda ii » bamenda ii, amanda l, amanda j
amanda i » amanda l, amanda j, amanda m

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: (( 17 amanda i 1 literatur a ) OR ( 6 ((agenda ii) OR (amanda ii)) duo literatur ab )).
• Adding a wildcard symbol may retrieve word variants: (( 17 amanda i 1 literatur a ) or ( 6 ((agenda ii) or (amanda ii)) duo literatur ab ))*.