Talvez deva tentar algumas variações de ortografia:
century survey » center survey (Expandir a Pesquisa), centre survey (Expandir a Pesquisa), injury survey (Expandir a Pesquisa)
survey system » surgery system (Expandir a Pesquisa), prey system (Expandir a Pesquisa), grey system (Expandir a Pesquisa)
crespo nerve » crest nerve (Expandir a Pesquisa), crespo hervas (Expandir a Pesquisa), crespo servan (Expandir a Pesquisa)
system dis » system dias (Expandir a Pesquisa), system dcs (Expandir a Pesquisa), system di (Expandir a Pesquisa)
bent nerve » absent nerve (Expandir a Pesquisa), mental nerve (Expandir a Pesquisa), dental nerve (Expandir a Pesquisa)
nerve aged » nerve age (Expandir a Pesquisa), nerve agent (Expandir a Pesquisa), nerve based (Expandir a Pesquisa)
aged disc » caged disc (Expandir a Pesquisa), age disc (Expandir a Pesquisa), based disc (Expandir a Pesquisa)
j crespo » a crespo (Expandir a Pesquisa), d crespo (Expandir a Pesquisa), _ crespo (Expandir a Pesquisa)
nerve c » nerve cn (Expandir a Pesquisa), nerve _ (Expandir a Pesquisa), nerve a (Expandir a Pesquisa)
j bent » j benet (Expandir a Pesquisa), j bento (Expandir a Pesquisa), j bena (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": "(((( j crespo nerve c dis ) OR ( a century survey system dis ))) OR ( j bent nerve aged disc ))~".
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( j crespo nerve c dis ) OR ( a century survey system dis ))) OR ( j bent nerve aged disc ))*.