Talvez deva tentar algumas variações de ortografia:
nerve system » nervous system (Expandir a Pesquisa), drive system (Expandir a Pesquisa)
mental nerve » ventral nerve (Expandir a Pesquisa), central nerve (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 dds (Expandir a Pesquisa)
ben nerve » bent nerve (Expandir a Pesquisa), when nerve (Expandir a Pesquisa), open nerve (Expandir a Pesquisa)
case dis » case disc (Expandir a Pesquisa), case did (Expandir a Pesquisa), case di (Expandir a Pesquisa)
j mental » j mengual (Expandir a Pesquisa), j mena (Expandir a Pesquisa), j mehta (Expandir a Pesquisa)
i crest » i crestr (Expandir a Pesquisa), _ crest (Expandir a Pesquisa), a crest (Expandir a Pesquisa)
a ben » a bin (Expandir a Pesquisa), _ ben (Expandir a Pesquisa), m ben (Expandir a Pesquisa)

You can also try:

• Europeana
• Digital Public Library of America
• CORE

Pode obter mais resultados ajustando a pesquisa.

• Performing a fuzzy search may retrieve terms with similar spellings: (((( a ben nerve case due ) or ( i crest nerve case dis ))) or ( j mental nerve system dis ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( a ben nerve case due ) OR ( i crest nerve case dis ))) OR ( j mental nerve system dis )).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( a ben nerve case due ) or ( i crest nerve case dis ))) or ( j mental nerve system dis ))*.