Talvez deva tentar algumas variações de ortografia:
ventral nerve » femoral nerve (Expandir a Pesquisa)
treat service » forest service (Expandir a Pesquisa), treat cervical (Expandir a Pesquisa), direct service (Expandir a Pesquisa)
central nerve » central nervous (Expandir a Pesquisa), central neural (Expandir a Pesquisa), pectoral nerve (Expandir a Pesquisa)
service case » services case (Expandir a Pesquisa), service cases (Expandir a Pesquisa), service care (Expandir a Pesquisa)
i ventral » _ ventral (Expandir a Pesquisa), a ventral (Expandir a Pesquisa), 2 ventral (Expandir a Pesquisa)
j central » 1hfj central (Expandir a Pesquisa)
case dis » case disc (Expandir a Pesquisa), case did (Expandir a Pesquisa), case di (Expandir a Pesquisa)
j treat » j threat (Expandir a Pesquisa), a treat (Expandir a Pesquisa), j trent (Expandir a Pesquisa)
nerve a » nerve _ (Expandir a Pesquisa)
a tdcs » _ tdcs (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: (((( j treat service case dis ) OR ( i ventral nerve a tdcs ))) OR ( j central nerve case dis ))~.
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( j treat service case dis ) or ( i ventral nerve a tdcs ))) or ( j central nerve case dis ))*.