Talvez deva tentar algumas variações de ortografia:
ventral merve » ventral nerve (Expandir a Pesquisa), ventral mesh (Expandir a Pesquisa), meral merve (Expandir a Pesquisa)
center nerve » cancer nerve (Expandir a Pesquisa), center nurse (Expandir a Pesquisa), letter nerve (Expandir a Pesquisa)
nerve system » nervous system (Expandir a Pesquisa), drive system (Expandir a Pesquisa)
benign nevi » benign neck (Expandir a Pesquisa)
system dis » system dias (Expandir a Pesquisa), system dcs (Expandir a Pesquisa), system dds (Expandir a Pesquisa)
a ventral » _ ventral (Expandir a Pesquisa), a ventura (Expandir a Pesquisa)
nevi cyst » nevi case (Expandir a Pesquisa), nevi cns (Expandir a Pesquisa)
j center » j centner (Expandir a Pesquisa), 2 center (Expandir a Pesquisa), 19 center (Expandir a Pesquisa)
can dce » can de (Expandir a Pesquisa), can dcs (Expandir a Pesquisa), can dance (Expandir a Pesquisa)
cyst d » cyst _ (Expandir a Pesquisa), cyst a (Expandir a Pesquisa), cyst 2 (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 center nerve system dis ) OR ( a ventral merve can dce ))) OR ( _ benign nevi cyst d ))~".
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( j center nerve system dis ) OR ( a ventral merve can dce ))) OR ( _ benign nevi cyst d ))*.