Talvez deva tentar algumas variações de ortografia:
renal nerve » retinal nerve (Expandir a Pesquisa), cranial nerve (Expandir a Pesquisa), spinal nerve (Expandir a Pesquisa)
bento nerve » bent nerve (Expandir a Pesquisa), benign nerve (Expandir a Pesquisa)
real merve » meral merve (Expandir a Pesquisa), real server (Expandir a Pesquisa), senal merve (Expandir a Pesquisa)
nerve cut » nerve cat (Expandir a Pesquisa), nerve ct (Expandir a Pesquisa), nerve cuff (Expandir a Pesquisa)
merve can » nerve can (Expandir a Pesquisa)
j renal » j real (Expandir a Pesquisa), j renaldi (Expandir a Pesquisa), j renata (Expandir a Pesquisa)
cut dis » cut disk (Expandir a Pesquisa), cut discs (Expandir a Pesquisa), cut dian (Expandir a Pesquisa)
can dcs » can tdcs (Expandir a Pesquisa), can dce (Expandir a Pesquisa), can bddcs (Expandir a Pesquisa)
j bento » j benito (Expandir a Pesquisa), j benton (Expandir a Pesquisa), j benson (Expandir a Pesquisa)
i real » i really (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 renal nerve cut dis ) OR ( i real merve can dcs ))) OR ( j bento nerve cut dis ))~".
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( j renal nerve cut dis ) OR ( i real merve can dcs ))) OR ( j bento nerve cut dis ))*.