Talvez deva tentar algumas variações de ortografia:
nerves folate » nerves fate (Expandir a Pesquisa), nerves modulate (Expandir a Pesquisa), nerves modulates (Expandir a Pesquisa)
current nerve » recurrent nerve (Expandir a Pesquisa), current service (Expandir a Pesquisa), current survey (Expandir a Pesquisa)
nerve system » nervous system (Expandir a Pesquisa), drive system (Expandir a Pesquisa)
folate diet » isolate diet (Expandir a Pesquisa), folate does (Expandir a Pesquisa), folate et (Expandir a Pesquisa)
cat nerves » rat nerve (Expandir a Pesquisa)
system dis » system dias (Expandir a Pesquisa), system dcs (Expandir a Pesquisa), system di (Expandir a Pesquisa)
mehta nave » mehta naveen (Expandir a Pesquisa), mehta navin (Expandir a Pesquisa), mehta naik (Expandir a Pesquisa)
nave case » cave case (Expandir a Pesquisa), wave case (Expandir a Pesquisa), native case (Expandir a Pesquisa)
case dis » case disc (Expandir a Pesquisa), case di (Expandir a Pesquisa), case does (Expandir a Pesquisa)
j mehta » a mehta (Expandir a Pesquisa), _ mehta (Expandir a Pesquisa), k mehta (Expandir a Pesquisa)
ii cat » ii can (Expandir a Pesquisa), ii ca2 (Expandir a Pesquisa), ii ca3 (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": "(((( ii cat nerves folate diet ) OR ( i current nerve system dis ))) OR ( j mehta nave case dis ))~".
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( ii cat nerves folate diet ) OR ( i current nerve system dis ))) OR ( j mehta nave case dis ))*.