Talvez deva tentar algumas variações de ortografia:
nerve system » nervous system (Expandir a Pesquisa), drive system (Expandir a Pesquisa)
belval nerve » mental nerve (Expandir a Pesquisa), dental nerve (Expandir a Pesquisa), basal nerve (Expandir a Pesquisa)
retina nerve » retinal nerve (Expandir a Pesquisa), retina novel (Expandir a Pesquisa)
renal nerve » retinal nerve (Expandir a Pesquisa), cranial nerve (Expandir a Pesquisa), spinal nerve (Expandir a Pesquisa)
system dcus » system dcs (Expandir a Pesquisa), system des (Expandir a Pesquisa), system dds (Expandir a Pesquisa)
nerve cat » nerve can (Expandir a Pesquisa), nerve ct (Expandir a Pesquisa), nerve cut (Expandir a Pesquisa)
j belval » j bell (Expandir a Pesquisa), j bela (Expandir a Pesquisa)
cat diet » cat diets (Expandir a Pesquisa), fat diet (Expandir a Pesquisa), eat diet (Expandir a Pesquisa)
j retina » j reina (Expandir a Pesquisa), j retana (Expandir a Pesquisa), j reino (Expandir a Pesquisa)
e renal » cme renal (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: (( e renal nerve system dcus ) OR ((( j belval nerve cat diet ) OR ( j retina nerve cat diet ))))~.
• "As palabras AND, OR e NOT podem gerar pesquisas incorrectas; tente utilizar aspas": "(( e renal nerve system dcus ) OR ((( j belval nerve cat diet ) OR ( j retina nerve cat diet ))))".
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( e renal nerve system dcus ) OR ((( j belval nerve cat diet ) OR ( j retina nerve cat diet ))))*.