Talvez deva tentar algumas variações de ortografia:
canada compared » canada comparing (Expandir a Pesquisa), cancer compared (Expandir a Pesquisa), malaria compared (Expandir a Pesquisa)
delta computer » data computer (Expandir a Pesquisa), delphi computer (Expandir a Pesquisa), stella computer (Expandir a Pesquisa)
computer based » computer aided (Expandir a Pesquisa)
compared a » compared _ (Expandir a Pesquisa), compare a (Expandir a Pesquisa), compare _ (Expandir a Pesquisa)
claims can » claims cash (Expandir a Pesquisa), claims a (Expandir a Pesquisa), claims mar (Expandir a Pesquisa)
based snow » based snp (Expandir a Pesquisa)
j canada » e canada (Expandir a Pesquisa), l canada (Expandir a Pesquisa), du canada (Expandir a Pesquisa)
a claims » _ claims (Expandir a Pesquisa)
j delta » j della (Expandir a Pesquisa), j delton (Expandir a Pesquisa)

You can also try:

• Europeana
• Digital Public Library of America
• CORE

Pode obter mais resultados ajustando a pesquisa.

• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( j canada compared a near ) OR ( j a claims can new ))) OR ( j delta computer based snow ))~.
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( j canada compared a near ) or ( j a claims can new ))) or ( j delta computer based snow ))*.