Talvez deva tentar algumas variações de ortografia:
abducent nerve » abducens nerve (Expandir a Pesquisa)
nerve system » nervous system (Expandir a Pesquisa), drive system (Expandir a Pesquisa)
cent nerve » bent nerve (Expandir a Pesquisa), recent nerve (Expandir a Pesquisa), crest nerve (Expandir a Pesquisa)
nerve cyst » nerve case (Expandir a Pesquisa), nerve cat (Expandir a Pesquisa)
bear serve » bear serum (Expandir a Pesquisa), bear preserve (Expandir a Pesquisa), better serve (Expandir a Pesquisa)
_ abducent » _ abducens (Expandir a Pesquisa)
system di » system de (Expandir a Pesquisa), system d (Expandir a Pesquisa), system dias (Expandir a Pesquisa)
cyst dis » cyst due (Expandir a Pesquisa), cyst d (Expandir a Pesquisa)
a cent » a cena (Expandir a Pesquisa), a cenp (Expandir a Pesquisa), a center (Expandir a Pesquisa)
j bear » j beard (Expandir a Pesquisa), j beare (Expandir a Pesquisa), j beer (Expandir a Pesquisa)

You can also try:

• Europeana
• Digital Public Library of America
• CORE

Pode obter mais resultados ajustando a pesquisa.

• Performing a fuzzy search may retrieve terms with similar spellings: (( a cent nerve cyst dis ) OR ((( j bear serve cyst dis ) OR ( _ abducent nerve system di ))))~.
• "As palabras AND, OR e NOT podem gerar pesquisas incorrectas; tente utilizar aspas": "(( a cent nerve cyst dis ) OR ((( j bear serve cyst dis ) OR ( _ abducent nerve system di ))))".
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( a cent nerve cyst dis ) OR ((( j bear serve cyst dis ) OR ( _ abducent nerve system di ))))*.