Talvez deva tentar algumas variações de ortografia:
nerve system » nervous system (Expandir a Pesquisa), drive system (Expandir a Pesquisa)
retana nerve » retina nerve (Expandir a Pesquisa), retinal nerve (Expandir a Pesquisa), beta nerve (Expandir a Pesquisa)
system dias » system dan (Expandir a Pesquisa), system dcs (Expandir a Pesquisa), system dcus (Expandir a Pesquisa)
cena nerve » renal nerve (Expandir a Pesquisa), beta nerve (Expandir a Pesquisa), central nerve (Expandir a Pesquisa)
plga nerve » psa nerve (Expandir a Pesquisa), glia nerve (Expandir a Pesquisa), pgla nerve (Expandir a Pesquisa)
nerve fat » nerve fatty (Expandir a Pesquisa), nerves fate (Expandir a Pesquisa), nerve flap (Expandir a Pesquisa)
j retana » j regan (Expandir a Pesquisa), j renata (Expandir a Pesquisa), j reina (Expandir a Pesquisa)
i cena » a cena (Expandir a Pesquisa), _ cena (Expandir a Pesquisa), e cena (Expandir a Pesquisa)
j plga » _ plga (Expandir a Pesquisa), a plga (Expandir a Pesquisa), b plga (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: (( i cena nerve system dias ) OR ((( j plga nerve fat diet ) OR ( j retana nerve fat diet ))))~.
• "As palabras AND, OR e NOT podem gerar pesquisas incorrectas; tente utilizar aspas": "(( i cena nerve system dias ) OR ((( j plga nerve fat diet ) OR ( j retana nerve fat diet ))))".
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( i cena nerve system dias ) OR ((( j plga nerve fat diet ) OR ( j retana nerve fat diet ))))*.