Talvez deva tentar algumas variações de ortografia:
cranial merve » cranial nerve (Expandir a Pesquisa), cranial nerves (Expandir a Pesquisa), cranial mri (Expandir a Pesquisa)
center nerve » cancer nerve (Expandir a Pesquisa), center nurse (Expandir a Pesquisa), letter nerve (Expandir a Pesquisa)
benzo nerve » bent nerve (Expandir a Pesquisa), benign nerve (Expandir a Pesquisa)
nerve cyst » nerve case (Expandir a Pesquisa), nerve cat (Expandir a Pesquisa), nerve system (Expandir a Pesquisa)
i cranial » vii cranial (Expandir a Pesquisa), iii cranial (Expandir a Pesquisa), gic cranial (Expandir a Pesquisa)
merve can » nerve can (Expandir a Pesquisa)
a center » a century (Expandir a Pesquisa)
cyst dis » cyst due (Expandir a Pesquisa)
can dcs » can tdcs (Expandir a Pesquisa), can dce (Expandir a Pesquisa), can dags (Expandir a Pesquisa)
j benzo » j bento (Expandir a Pesquisa), j benito (Expandir a Pesquisa), j benton (Expandir a Pesquisa)

You can also try:

• Europeana
• Digital Public Library of America
• CORE

Pode obter mais resultados ajustando a pesquisa.

• "As palabras AND, OR e NOT podem gerar pesquisas incorrectas; tente utilizar aspas": "(((( a center nerve cyst dis ) OR ( i cranial merve can dcs ))) OR ( j benzo nerve cyst dis ))~".
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( a center nerve cyst dis ) OR ( i cranial merve can dcs ))) OR ( j benzo nerve cyst dis ))*.