Talvez deva tentar algumas variações de ortografia:
benign neil » benign neck (Expandir a Pesquisa), benign nevi (Expandir a Pesquisa), benign cell (Expandir a Pesquisa)
benzo nerve » bent nerve (Expandir a Pesquisa), benign nerve (Expandir a Pesquisa)
nerve cat » nerve can (Expandir a Pesquisa), nerve ct (Expandir a Pesquisa), nerve cut (Expandir a Pesquisa)
i ventral » _ ventral (Expandir a Pesquisa), a ventral (Expandir a Pesquisa), 2 ventral (Expandir a Pesquisa)
j benign » j benigno (Expandir a Pesquisa), _ benign (Expandir a Pesquisa), a benign (Expandir a Pesquisa)
neil can » neil cowan (Expandir a Pesquisa), neil caton (Expandir a Pesquisa), neil chen (Expandir a Pesquisa)
can diet » can direct (Expandir a Pesquisa)
j benzo » j bento (Expandir a Pesquisa), j benito (Expandir a Pesquisa), j benton (Expandir a Pesquisa)
cat dis » cat did (Expandir a Pesquisa), cat diets (Expandir a Pesquisa), cat bias (Expandir a Pesquisa)
eye can » eye care (Expandir a Pesquisa)
can dcs » can tdcs (Expandir a Pesquisa), can dce (Expandir a Pesquisa), can bddcs (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": "(((( j benzo nerve cat dis ) OR ( i ventral eye can dcs ))) OR ( j benign neil can diet ))~".
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( j benzo nerve cat dis ) OR ( i ventral eye can dcs ))) OR ( j benign neil can diet ))*.