Talvez deva tentar algumas variações de ortografia:
cancer nurse » cancer nurses (Expandir a Pesquisa), cancer course (Expandir a Pesquisa), cancer nude (Expandir a Pesquisa)
bento duarte » pinto duarte (Expandir a Pesquisa), alberto duarte (Expandir a Pesquisa), roberto duarte (Expandir a Pesquisa)
duarte based » duarte bard (Expandir a Pesquisa), duarte barnes (Expandir a Pesquisa), duarte bastos (Expandir a Pesquisa)
benign genus » benign gene (Expandir a Pesquisa), benign sinus (Expandir a Pesquisa), benign glomus (Expandir a Pesquisa)
genus based » genes based (Expandir a Pesquisa), sinus based (Expandir a Pesquisa), genomes based (Expandir a Pesquisa)
based dti » based data (Expandir a Pesquisa), based de (Expandir a Pesquisa), based d (Expandir a Pesquisa)
ii benign » i benign (Expandir a Pesquisa), _ benign (Expandir a Pesquisa), a benign (Expandir a Pesquisa)
j cancer » j canter (Expandir a Pesquisa), j cantero (Expandir a Pesquisa), j candel (Expandir a Pesquisa)
j bento » j benito (Expandir a Pesquisa), j benton (Expandir a Pesquisa), j benson (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 nurse _ dis ) OR ((( j bento duarte based dti ) OR ( ii benign genus based dti ))))~".
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j cancer nurse _ dis ) OR ((( j bento duarte based dti ) OR ( ii benign genus based dti ))))*.