Talvez deva tentar algumas variações de ortografia:
center nerve » cancer nerve (Expandir a Pesquisa), center nurse (Expandir a Pesquisa), letter nerve (Expandir a Pesquisa)
benign nerve » benign nevi (Expandir a Pesquisa), benign neck (Expandir a Pesquisa), benign beale (Expandir a Pesquisa)
nerve cases » nerve caused (Expandir a Pesquisa), nerve based (Expandir a Pesquisa), nerve changes (Expandir a Pesquisa)
beth nerve » beta nerve (Expandir a Pesquisa), both nerve (Expandir a Pesquisa), both nerves (Expandir a Pesquisa)
nerve nn » nerve non (Expandir a Pesquisa), nerve na (Expandir a Pesquisa), nerve net (Expandir a Pesquisa)
j benign » j benigno (Expandir a Pesquisa), do benign (Expandir a Pesquisa), ml benign (Expandir a Pesquisa)
cases de » cases due (Expandir a Pesquisa), cases _ (Expandir a Pesquisa), cases a (Expandir a Pesquisa)
nn dis » en dis (Expandir a Pesquisa)
case d » case de (Expandir a Pesquisa), case 2 (Expandir a Pesquisa), case 1 (Expandir a Pesquisa)

You can also try:

• Europeana
• Digital Public Library of America
• CORE

Pode obter mais resultados ajustando a pesquisa.

• Se retirar as aspas poderá fazer uma pesquisa mais abragente: (( _ center nerve nn dis ) or ((( j beth nerve case d ) or ( j benign nerve cases de ))))~.