Talvez deva tentar algumas variações de ortografia:
cancer inverse » cancer increase (Expandir a Pesquisa), cancer increases (Expandir a Pesquisa), cancer increased (Expandir a Pesquisa)
inverse honor » inverse holder (Expandir a Pesquisa), inverse cone (Expandir a Pesquisa)
brest cancer » breast cancer (Expandir a Pesquisa), breast cancers (Expandir a Pesquisa), diet cancer (Expandir a Pesquisa)
canal cancer » anal cancer (Expandir a Pesquisa), renal cancer (Expandir a Pesquisa), central cancer (Expandir a Pesquisa)
cancer index » cancer induced (Expandir a Pesquisa), cancer induces (Expandir a Pesquisa)
index monogr » index motor (Expandir a Pesquisa), index monitor (Expandir a Pesquisa), index among (Expandir a Pesquisa)
j brest » j brent (Expandir a Pesquisa), j brett (Expandir a Pesquisa), j bret (Expandir a Pesquisa)
j canal » j canals (Expandir a Pesquisa), j candal (Expandir a Pesquisa), j canas (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 brest cancer inverse honor ) OR ( j canal cancer index monogr ))~".
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j brest cancer inverse honor ) OR ( j canal cancer index monogr ))*.