Perhaps you should try some spelling variations:
letter nerve » letter nurse (Expand Search), matter nerve (Expand Search), letter nervous (Expand Search)
cent nerve » recent nerve (Expand Search), crest nerve (Expand Search), central nerve (Expand Search)
nerve cyst » nerve cystic (Expand Search), nerve cat (Expand Search), nerve ct (Expand Search)
bent nerve » absent nerve (Expand Search), mental nerve (Expand Search), dental nerve (Expand Search)
bj letter » bj letters (Expand Search), b.j letters (Expand Search), _ letter (Expand Search)
case disc » cause disc (Expand Search), case did (Expand Search), case di (Expand Search)
cyst dis » cyst due (Expand Search), cyst d (Expand Search), cyst dna (Expand Search)
nerve c » nerve cn (Expand Search), nerve co (Expand Search), nerve ct (Expand Search)
a cent » a cena (Expand Search), a cenp (Expand Search), a center (Expand Search)
j bent » j benet (Expand Search), j bento (Expand Search), j bena (Expand Search)
c dis » c dias (Expand Search), c disc (Expand Search), c dos (Expand Search)

You can also try:

• Europeana
• Digital Public Library of America
• CORE

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((( bj letter nerve c dis ) or ( a cent nerve cyst dis ))) or ( j bent nerve case disc ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((( bj letter nerve c dis ) OR ( a cent nerve cyst dis ))) OR ( j bent nerve case disc )).
• Adding a wildcard symbol may retrieve word variants: (((( bj letter nerve c dis ) or ( a cent nerve cyst dis ))) or ( j bent nerve case disc ))*.