Perhaps you should try some spelling variations:
2c martin » c martin, 2 martin, 27 martin
20 martin » 10 martin, v2.0 martin, 20 marine
12 martin » 2 martin, 12 marine, 12 main
23 1889 » 1823 1889
22 1889 » 226 1889, 2 1889, 22 1888
2f 1889 » 2 1889, f 1889, 24 1889
_ 1889 » _ 1880, _ 1849, _ 1882
_ 1819 » _ 1812, _ 1818

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)) %((((2f 1889) OR (22 1889))) OR (((23 1889) OR (((_ 1889) OR (_ 1819))))))-1976%22*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%22heidegger%((((2c martin) or (20 martin))) or (12 martin)) %((((2f 1889) OR (22 1889))) or (((23 1889) or (((_ 1889) or (_ 1819))))))-1976%22*".