Talvez deva tentar algumas variações de ortografia:
crespo nerve » crest nerve (Expandir a Pesquisa), crespo hervas (Expandir a Pesquisa), crespo servan (Expandir a Pesquisa)
dental nerve » mental nerve (Expandir a Pesquisa), ventral nerve (Expandir a Pesquisa), central nerve (Expandir a Pesquisa)
nerve system » nervous system (Expandir a Pesquisa), drive system (Expandir a Pesquisa)
nerve salt » nerve split (Expandir a Pesquisa), nerve safe (Expandir a Pesquisa), nerve self (Expandir a Pesquisa)
salt diets » salt diet (Expandir a Pesquisa), fat diets (Expandir a Pesquisa)
system dis » system dias (Expandir a Pesquisa), system dcs (Expandir a Pesquisa), system di (Expandir a Pesquisa)
nerve can » nerve canal (Expandir a Pesquisa), nerve case (Expandir a Pesquisa), nerve a (Expandir a Pesquisa)
j crespo » a crespo (Expandir a Pesquisa), _ crespo (Expandir a Pesquisa), l crespo (Expandir a Pesquisa)
i crespo » a crespo (Expandir a Pesquisa), _ crespo (Expandir a Pesquisa), l crespo (Expandir a Pesquisa)
j dental » j delta (Expandir a Pesquisa), j dent (Expandir a Pesquisa), j deal (Expandir a Pesquisa)
can dis » can disc (Expandir a Pesquisa), van dis (Expandir a Pesquisa), can die (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: (((( j crespo nerve can dis ) OR ( i crespo nerve salt diets ))) OR ( j dental nerve system dis ))~.
• "As palabras AND, OR e NOT podem gerar pesquisas incorrectas; tente utilizar aspas": "(((( j crespo nerve can dis ) OR ( i crespo nerve salt diets ))) OR ( j dental nerve system dis ))".
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( j crespo nerve can dis ) OR ( i crespo nerve salt diets ))) OR ( j dental nerve system dis ))*.