Talvez deva tentar algumas variações de ortografia:
absent nervous » insect nervous (Expandir a Pesquisa), absent nerve (Expandir a Pesquisa), affect nervous (Expandir a Pesquisa)
ventral nerve » femoral nerve (Expandir a Pesquisa)
bent nerve » absent nerve (Expandir a Pesquisa), mental nerve (Expandir a Pesquisa), dental nerve (Expandir a Pesquisa)
nerve cyst » nerve case (Expandir a Pesquisa), nerve cut (Expandir a Pesquisa), nerve system (Expandir a Pesquisa)
system dis » system dias (Expandir a Pesquisa), system dcs (Expandir a Pesquisa), system di (Expandir a Pesquisa)
a ventral » a ventura (Expandir a Pesquisa)
nerve cat » nerve can (Expandir a Pesquisa), nerve case (Expandir a Pesquisa), nerve a (Expandir a Pesquisa)
17 absent » _ absent (Expandir a Pesquisa), c1 absent (Expandir a Pesquisa), eo absent (Expandir a Pesquisa)
cyst dis » cyst due (Expandir a Pesquisa), cyst d (Expandir a Pesquisa)
cat dis » cat did (Expandir a Pesquisa), cat diets (Expandir a Pesquisa), cat diet (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 ventral nerve cat dis ) OR ( a bent nerve cyst dis ))) OR ( 17 absent nervous system dis ))~.
• "As palabras AND, OR e NOT podem gerar pesquisas incorrectas; tente utilizar aspas": "(((( a ventral nerve cat dis ) OR ( a bent nerve cyst dis ))) OR ( 17 absent nervous system dis ))".
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( a ventral nerve cat dis ) OR ( a bent nerve cyst dis ))) OR ( 17 absent nervous system dis ))*.