Talvez deva tentar algumas variações de ortografia:
crestr nerve » crest nerve (Expandir a Pesquisa), greater nerve (Expandir a Pesquisa)
cancer nerve » cancer serves (Expandir a Pesquisa), cancer needle (Expandir a Pesquisa), cancer nested (Expandir a Pesquisa)
mehta drive » mehta dhruven (Expandir a Pesquisa), mehta dhiren (Expandir a Pesquisa)
system dis » system dias (Expandir a Pesquisa), system dcs (Expandir a Pesquisa), system di (Expandir a Pesquisa)
nerve cat » nerve can (Expandir a Pesquisa), nerve a (Expandir a Pesquisa), nerve c (Expandir a Pesquisa)
case does » cases does (Expandir a Pesquisa), cause does (Expandir a Pesquisa), case goes (Expandir a Pesquisa)
j cancer » j canter (Expandir a Pesquisa), j cantero (Expandir a Pesquisa), j candel (Expandir a Pesquisa)
i crestr » i crispr (Expandir a Pesquisa), i crespo (Expandir a Pesquisa), i create (Expandir a Pesquisa)
cat dis » cat did (Expandir a Pesquisa), cat diets (Expandir a Pesquisa), cat diet (Expandir a Pesquisa)
j mehta » a mehta (Expandir a Pesquisa), _ mehta (Expandir a Pesquisa), k mehta (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 cancer nerve cat dis ) OR ( i crestr nerve case does ))) OR ( j mehta drive system dis ))~.
• "As palabras AND, OR e NOT podem gerar pesquisas incorrectas; tente utilizar aspas": "(((( j cancer nerve cat dis ) OR ( i crestr nerve case does ))) OR ( j mehta drive system dis ))".
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( j cancer nerve cat dis ) OR ( i crestr nerve case does ))) OR ( j mehta drive system dis ))*.