Talvez deva tentar algumas variações de ortografia:
derived cheyne » derived choline (Expandir a Pesquisa), derived canine (Expandir a Pesquisa), derived change (Expandir a Pesquisa)
spinal nerve » retinal nerve (Expandir a Pesquisa)
nerve system » nervous system (Expandir a Pesquisa), drive system (Expandir a Pesquisa)
cre derived » core derived (Expandir a Pesquisa), care derived (Expandir a Pesquisa), pre derived (Expandir a Pesquisa)
benzo nerve » bent nerve (Expandir a Pesquisa), benign nerve (Expandir a Pesquisa)
system due » system der (Expandir a Pesquisa)
i spinal » a spinal (Expandir a Pesquisa), i spiral (Expandir a Pesquisa), iii spinal (Expandir a Pesquisa)
nerve cn » nerve can (Expandir a Pesquisa), nerve c (Expandir a Pesquisa), nerve cat (Expandir a Pesquisa)
j benzo » j bento (Expandir a Pesquisa), j benito (Expandir a Pesquisa), j benton (Expandir a Pesquisa)
cn dcs » can dcs (Expandir a Pesquisa)
a cre » _ cre (Expandir a Pesquisa)

You can also try:

• Europeana
• Digital Public Library of America
• CORE

Pode obter mais resultados ajustando a pesquisa.

• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( a cre derived cheyne w ) OR ( i spinal nerve cn dcs ))) OR ( j benzo nerve system due ))~.
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( a cre derived cheyne w ) or ( i spinal nerve cn dcs ))) or ( j benzo nerve system due ))*.