Talvez deva tentar algumas variações de ortografia:
deltoid nerve » delayed 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)
benth nerve » bent nerve (Expandir a Pesquisa), both nerve (Expandir a Pesquisa), seventh nerve (Expandir a Pesquisa)
system dis » system dias (Expandir a Pesquisa), system dcs (Expandir a Pesquisa), system di (Expandir a Pesquisa)
j deltoid » _ deltoid (Expandir a Pesquisa), a deltoid (Expandir a Pesquisa), j delton (Expandir a Pesquisa)
case dis » case disc (Expandir a Pesquisa), case di (Expandir a Pesquisa), case does (Expandir a Pesquisa)
nerve c » nerve cn (Expandir a Pesquisa), nerve _ (Expandir a Pesquisa), nerve a (Expandir a Pesquisa)
i benth » l benth (Expandir a Pesquisa), ex benth (Expandir a Pesquisa)
c dis » c dias (Expandir a Pesquisa), c disc (Expandir a Pesquisa), c dos (Expandir a Pesquisa)

You can also try:

• Europeana
• Digital Public Library of America
• CORE

Pode obter mais resultados ajustando a pesquisa.

• "As palabras AND, OR e NOT podem gerar pesquisas incorrectas; tente utilizar aspas": "(((( _ crest nerve c dis ) OR ( i benth nerve case dis ))) OR ( j deltoid nerve system dis ))~".
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( _ crest nerve c dis ) OR ( i benth nerve case dis ))) OR ( j deltoid nerve system dis ))*.