Talvez deva tentar algumas variações de ortografia:
ventral nerve » femoral nerve (Expandir a Pesquisa)
nerve systems » nerve system (Expandir a Pesquisa), server systems (Expandir a Pesquisa), nervous systems (Expandir a Pesquisa)
letter nerve » letter nurse (Expandir a Pesquisa), matter nerve (Expandir a Pesquisa), letter nervous (Expandir a Pesquisa)
systems dds » systems dss (Expandir a Pesquisa), systems sedds (Expandir a Pesquisa), systems does (Expandir a Pesquisa)
case doesc » case goes (Expandir a Pesquisa), base does (Expandir a Pesquisa), case disc (Expandir a Pesquisa)
j ventral » _ ventral (Expandir a Pesquisa), a ventral (Expandir a Pesquisa), 2 ventral (Expandir a Pesquisa)
case does » cases does (Expandir a Pesquisa), cause does (Expandir a Pesquisa), base does (Expandir a Pesquisa)
j letter » bj letter (Expandir a Pesquisa), cj letter (Expandir a Pesquisa), j letters (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 letter nerve systems dds ) OR ( j ventral nerve ((case does) OR (case doesc)) ))~.
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j letter nerve systems dds ) or ( j ventral nerve ((case does) or (case doesc)) ))*.