Talvez deva tentar algumas variações de ortografia:
crespo nerve » crest nerve (Expandir a Pesquisa), crespo hervas (Expandir a Pesquisa), crespo servan (Expandir a Pesquisa)
threat never » threat levers (Expandir a Pesquisa), threat severe (Expandir a Pesquisa), threat level (Expandir a Pesquisa)
never system » lever system (Expandir a Pesquisa), server system (Expandir a Pesquisa), river system (Expandir a Pesquisa)
denham nerve » dental nerve (Expandir a Pesquisa), dental nerves (Expandir a Pesquisa), mental nerve (Expandir a Pesquisa)
system due » system der (Expandir a Pesquisa)
nerve cat » nerve can (Expandir a Pesquisa), nerve a (Expandir a Pesquisa), nerve c (Expandir a Pesquisa)
j crespo » g crespo (Expandir a Pesquisa)
j threat » al threat (Expandir a Pesquisa)
j denham » d denham (Expandir a Pesquisa), a denham (Expandir a Pesquisa), l denham (Expandir a Pesquisa)
cat dis » cat did (Expandir a Pesquisa), cat diets (Expandir a Pesquisa), cat diet (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 case due ) or ( j threat never system due ))) or ( j denham nerve cat dis ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( j crespo nerve case due ) OR ( j threat never system due ))) OR ( j denham nerve cat dis )).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( j crespo nerve case due ) or ( j threat never system due ))) or ( j denham nerve cat dis ))*.