Perhaps you should try some spelling variations:
2c martin » c martin, 27 martin, 29 martin
20 martin » 10 martin, v2.0 martin, 20 marine
12 martin » 12 marine, 12 marie, 12 mating
2 martin » 2 marine
12 main » 12 mai, 12 making, 12 marine
23 1889 » 1823 1889
f 1889 » _ 1889, 2 1889
1 1889 » _ 1889, 1 1819, 1 1829

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: %22heidegger%((((2c martin) OR (20 martin))) OR (((((12 martin) OR (12 main))) OR (2 martin)))) %((((2((f 1889) OR (1 1889))) OR (((f 1889) OR (1 1889))))) OR (23 1889))-1976%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%22heidegger%((((2c martin) OR (20 martin))) or (((((12 martin) or (12 main))) or (2 martin)))) %((((2((f 1889) or (1 1889))) or (((f 1889) or (1 1889))))) or (23 1889))-1976%22".
• Adding a wildcard symbol may retrieve word variants: %22heidegger%((((2c martin) OR (20 martin))) or (((((12 martin) or (12 main))) or (2 martin)))) %((((2((f 1889) or (1 1889))) or (((f 1889) or (1 1889))))) or (23 1889))-1976%22*.