Talvez deva tentar algumas variações de ortografia:
helps nerve » help nerve (Expandir a Pesquisa), help nerves (Expandir a Pesquisa)
crest nerve » treat nerve (Expandir a Pesquisa), crest derived (Expandir a Pesquisa), current nerve (Expandir a Pesquisa)
mena nerve » mental nerve (Expandir a Pesquisa), renal nerve (Expandir a Pesquisa), menan herve (Expandir a Pesquisa)
case dis » case disc (Expandir a Pesquisa), case did (Expandir a Pesquisa), case di (Expandir a Pesquisa)
1 helps » _ helps (Expandir a Pesquisa), 1 helper (Expandir a Pesquisa)
nerve c » nerve cn (Expandir a Pesquisa), nerve co (Expandir a Pesquisa), nerve ct (Expandir a Pesquisa)
c diets » _ diets (Expandir a Pesquisa), c dietz (Expandir a Pesquisa), 2 diets (Expandir a Pesquisa)
i crest » i crestr (Expandir a Pesquisa), _ crest (Expandir a Pesquisa), a crest (Expandir a Pesquisa)
j mena » j medina (Expandir a Pesquisa)
c due » c duke (Expandir a Pesquisa), _ due (Expandir a Pesquisa), 2 due (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: (((( 1 helps nerve c diets ) or ( i crest nerve case dis ))) or ( j mena nerve c due ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( 1 helps nerve c diets ) OR ( i crest nerve case dis ))) OR ( j mena nerve c due )).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( 1 helps nerve c diets ) or ( i crest nerve case dis ))) or ( j mena nerve c due ))*.