Talvez deva tentar algumas variações de ortografia:
cancer surveys » cancer survey (Expandir a Pesquisa), cancer surgery (Expandir a Pesquisa), cancer survivors (Expandir a Pesquisa)
surveys cyst » surveys cast (Expandir a Pesquisa), surveys case (Expandir a Pesquisa), surveys cause (Expandir a Pesquisa)
nerve cystic » naive cystic (Expandir a Pesquisa), nerve cyst (Expandir a Pesquisa), native cystic (Expandir a Pesquisa)
unal merve » ural merve (Expandir a Pesquisa), unal server (Expandir a Pesquisa), senal merve (Expandir a Pesquisa)
when nerve » when nerves (Expandir a Pesquisa), within nerve (Expandir a Pesquisa)
cystic due » cystica due (Expandir a Pesquisa), cystic duct (Expandir a Pesquisa), cystic eye (Expandir a Pesquisa)
merve can » nerve can (Expandir a Pesquisa)
j cancer » j canter (Expandir a Pesquisa), j cantero (Expandir a Pesquisa), j candel (Expandir a Pesquisa)
can dan » can data (Expandir a Pesquisa)
i unal » g unal (Expandir a Pesquisa), m unal (Expandir a Pesquisa), a unal (Expandir a Pesquisa)
j when » 1 when (Expandir a Pesquisa), j whelan (Expandir a Pesquisa), j whalen (Expandir a Pesquisa)

You can also try:

• Europeana
• Digital Public Library of America
• CORE

Pode obter mais resultados ajustando a pesquisa.

• "As palabras AND, OR e NOT podem gerar pesquisas incorrectas; tente utilizar aspas": "(((( j cancer surveys cyst due ) OR ( i unal merve can dan ))) OR ( j when nerve cystic due ))~".
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( j cancer surveys cyst due ) OR ( i unal merve can dan ))) OR ( j when nerve cystic due ))*.