Talvez deva tentar algumas variações de ortografia:
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)
crest nerve » treat nerve (Expandir a Pesquisa), crest derived (Expandir a Pesquisa), current nerve (Expandir a Pesquisa)
system dis » system dias (Expandir a Pesquisa), system dcs (Expandir a Pesquisa), system di (Expandir a Pesquisa)
system due » system der (Expandir a Pesquisa)
dent merve » dede merve (Expandir a Pesquisa), dental nerve (Expandir a Pesquisa), dentin nerve (Expandir a Pesquisa)
ii center » ii centers (Expandir a Pesquisa)
merve can » nerve can (Expandir a Pesquisa)
_ crest » _ create (Expandir a Pesquisa), _ credit (Expandir a Pesquisa)
can dce » can de (Expandir a Pesquisa), can die (Expandir a Pesquisa), can dcs (Expandir a Pesquisa)
j dent » j deng (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: (((( ii center nerve system dis ) OR ( _ crest nerve system due ))) OR ( j dent merve can dce ))~.
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( ii center nerve system dis ) or ( _ crest nerve system due ))) or ( j dent merve can dce ))*.