Talvez deva tentar algumas variações de ortografia:
reserve system » research system (Expandir a Pesquisa), nerve system (Expandir a Pesquisa), research systems (Expandir a Pesquisa)
cancer serves » cancer series (Expandir a Pesquisa), cancer services (Expandir a Pesquisa), cancer surveys (Expandir a Pesquisa)
mena reserve » men reserve (Expandir a Pesquisa), amana reserve (Expandir a Pesquisa), renal reserve (Expandir a Pesquisa)
best nerve » best serve (Expandir a Pesquisa), bent nerve (Expandir a Pesquisa), best served (Expandir a Pesquisa)
system das » systems das (Expandir a Pesquisa), system dacs (Expandir a Pesquisa), system des (Expandir a Pesquisa)
serves nn » serves _ (Expandir a Pesquisa), serves a (Expandir a Pesquisa), serves er (Expandir a Pesquisa)
j cancer » j canter (Expandir a Pesquisa), j cantero (Expandir a Pesquisa), j candel (Expandir a Pesquisa)
nerve c » nerve cn (Expandir a Pesquisa), nerve co (Expandir a Pesquisa), nerve ct (Expandir a Pesquisa)
nn dis » en dis (Expandir a Pesquisa)
i best » sti best (Expandir a Pesquisa)
j mena » j medina (Expandir a Pesquisa)
c dis » c dias (Expandir a Pesquisa), c disc (Expandir a Pesquisa), c dos (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 serves nn dis ) or ( i best nerve c dis ))) or ( j mena reserve system das ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( j cancer serves nn dis ) OR ( i best nerve c dis ))) OR ( j mena reserve system das )).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( j cancer serves nn dis ) or ( i best nerve c dis ))) or ( j mena reserve system das ))*.