Talvez deva tentar algumas variações de ortografia:
central reserve » central reservoir (Expandir a Pesquisa), central research (Expandir a Pesquisa), central resource (Expandir a Pesquisa)
reserve system » research system (Expandir a Pesquisa), nerve system (Expandir a Pesquisa), research systems (Expandir a Pesquisa)
cancer needle » cancer need (Expandir a Pesquisa), cancer needs (Expandir a Pesquisa), after needle (Expandir a Pesquisa)
mental nerve » ventral nerve (Expandir a Pesquisa), central nerve (Expandir a Pesquisa)
needle cnat » needle cast (Expandir a Pesquisa), needle cap (Expandir a Pesquisa), needle ant (Expandir a Pesquisa)
j central » 1hfj central (Expandir a Pesquisa)
j cancer » j canter (Expandir a Pesquisa), j cantero (Expandir a Pesquisa), j candel (Expandir a Pesquisa)
cnat dis » cent dis (Expandir a Pesquisa)
i mental » vi mental (Expandir a Pesquisa), ii mental (Expandir a Pesquisa), i metal (Expandir a Pesquisa)
nerve cn » nerve can (Expandir a Pesquisa), nerve c (Expandir a Pesquisa), nerve co (Expandir a Pesquisa)
system d » system de (Expandir a Pesquisa), system der (Expandir a Pesquisa), system des (Expandir a Pesquisa)
cn disc » can disc (Expandir a Pesquisa), c disc (Expandir a Pesquisa), car disc (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 needle cnat dis ) or ( i mental nerve cn disc ))) or ( j central reserve system d ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( j cancer needle cnat dis ) OR ( i mental nerve cn disc ))) OR ( j central reserve system d )).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( j cancer needle cnat dis ) or ( i mental nerve cn disc ))) or ( j central reserve system d ))*.