Talvez deva tentar algumas variações de ortografia:
benign nerve » benign nevi (Expandir a Pesquisa), benign neck (Expandir a Pesquisa), benign beale (Expandir a Pesquisa)
center nurse » center nurses (Expandir a Pesquisa), letter nurse (Expandir a Pesquisa), cancer nurse (Expandir a Pesquisa)
detect nerve » direct nerve (Expandir a Pesquisa), detect neural (Expandir a Pesquisa), detect novel (Expandir a Pesquisa)
nurse cat » nurse can (Expandir a Pesquisa), nurse cadet (Expandir a Pesquisa), nurse can't (Expandir a Pesquisa)
we detect » _ detect (Expandir a Pesquisa)
j center » j centner (Expandir a Pesquisa), 1 center (Expandir a Pesquisa), j centeno (Expandir a Pesquisa)
a benign » _ benign (Expandir a Pesquisa)
case dis » case disc (Expandir a Pesquisa), case di (Expandir a Pesquisa), case does (Expandir a Pesquisa)
cat dis » cat did (Expandir a Pesquisa), cat diets (Expandir a Pesquisa), cat diet (Expandir a Pesquisa)
case de » case due (Expandir a Pesquisa), case d (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: (( j center nurse cat dis ) or ((( a benign nerve case dis ) or ( we detect nerve case de ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j center nurse cat dis ) OR ((( a benign nerve case dis ) OR ( we detect nerve case de )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j center nurse cat dis ) or ((( a benign nerve case dis ) or ( we detect nerve case de ))))*.