Talvez deva tentar algumas variações de ortografia:
calder nurses » cancer nurses (Expandir a Pesquisa), older nurses (Expandir a Pesquisa), career nurses (Expandir a Pesquisa)
current nerve » recurrent nerve (Expandir a Pesquisa), current service (Expandir a Pesquisa), current energy (Expandir a Pesquisa)
nerve system » nervous system (Expandir a Pesquisa), drive system (Expandir a Pesquisa)
nurses cyst » nurses case (Expandir a Pesquisa), nurses cross (Expandir a Pesquisa), nurses cease (Expandir a Pesquisa)
benet nerve » bent nerve (Expandir a Pesquisa), detect nerve (Expandir a Pesquisa), benign nerve (Expandir a Pesquisa)
system dis » system dias (Expandir a Pesquisa), system dcs (Expandir a Pesquisa), system dds (Expandir a Pesquisa)
j current » j currently (Expandir a Pesquisa), j curran (Expandir a Pesquisa), j currell (Expandir a Pesquisa)
j calder » c calder (Expandir a Pesquisa), _ calder (Expandir a Pesquisa), j calderon (Expandir a Pesquisa)
v dinets » v odinets (Expandir a Pesquisa), a dinets (Expandir a Pesquisa), v medinets (Expandir a Pesquisa)
nerve v » nerve vi (Expandir a Pesquisa), nerve _ (Expandir a Pesquisa), nerve a (Expandir a Pesquisa)
j benet » j bennett (Expandir a Pesquisa), j benito (Expandir a Pesquisa), j benesi (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 calder nurses cyst due ) OR ( j current nerve v dinets ))) OR ( j benet nerve system dis ))~.
• "As palabras AND, OR e NOT podem gerar pesquisas incorrectas; tente utilizar aspas": "(((( j calder nurses cyst due ) OR ( j current nerve v dinets ))) OR ( j benet nerve system dis ))".
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( j calder nurses cyst due ) OR ( j current nerve v dinets ))) OR ( j benet nerve system dis ))*.