Talvez deva tentar algumas variações de ortografia:
cancer nurses » cancer nursing (Expandir a Pesquisa)
nurses based » nurse based (Expandir a Pesquisa), courses based (Expandir a Pesquisa), horses based (Expandir a Pesquisa)
renato serve » renato seren (Expandir a Pesquisa), renato siervis (Expandir a Pesquisa), renato sergio (Expandir a Pesquisa)
cent serve » stent serve (Expandir a Pesquisa), best serve (Expandir a Pesquisa), pet serve (Expandir a Pesquisa)
serve cyst » nerve cyst (Expandir a Pesquisa), nerve cystic (Expandir a Pesquisa)
based dis » based disk (Expandir a Pesquisa), based disc (Expandir a Pesquisa), based ddis (Expandir a Pesquisa)
j cancer » j canter (Expandir a Pesquisa), j cantero (Expandir a Pesquisa), j candel (Expandir a Pesquisa)
j renato » j renata (Expandir a Pesquisa)
ai cent » i cent (Expandir a Pesquisa), ii cent (Expandir a Pesquisa), ai centri (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 nurses based dis ) or ( ai cent serve cyst _ ))) or ( j renato serve cyst _ ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( j cancer nurses based dis ) OR ( ai cent serve cyst _ ))) OR ( j renato serve cyst _ )).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( j cancer nurses based dis ) or ( ai cent serve cyst _ ))) or ( j renato serve cyst _ ))*.