Talvez deva tentar algumas variações de ortografia:
reserve systems » reserved systems (Expandir a Pesquisa), reserve system (Expandir a Pesquisa), reservoir systems (Expandir a Pesquisa)
central reserve » control reserve (Expandir a Pesquisa), central reservoir (Expandir a Pesquisa), central research (Expandir a Pesquisa)
cancer surveys » cancer surgery (Expandir a Pesquisa), cancer survivors (Expandir a Pesquisa), cancer surgeries (Expandir a Pesquisa)
surveys can » surveys case (Expandir a Pesquisa), surveys cast (Expandir a Pesquisa), surveys a (Expandir a Pesquisa)
systems das » systems adas (Expandir a Pesquisa), systems dss (Expandir a Pesquisa), systems dds (Expandir a Pesquisa)
bent nerve » absent nerve (Expandir a Pesquisa), mental nerve (Expandir a Pesquisa), dental nerve (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)
can dis » can disc (Expandir a Pesquisa), van dis (Expandir a Pesquisa), can die (Expandir a Pesquisa)
nerve a » nerve _ (Expandir a Pesquisa)
i bent » i benth (Expandir a Pesquisa), i benet (Expandir a Pesquisa), i bento (Expandir a Pesquisa)
a des » a dos (Expandir a Pesquisa), a del (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 surveys can dis ) or ( i bent nerve a des ))) or ( j central reserve systems das ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( j cancer surveys can dis ) OR ( i bent nerve a des ))) OR ( j central reserve systems das )).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( j cancer surveys can dis ) or ( i bent nerve a des ))) or ( j central reserve systems das ))*.