Talvez deva tentar algumas variações de ortografia:
compared causes » compared case (Expandir a Pesquisa), comparing causes (Expandir a Pesquisa), complex causes (Expandir a Pesquisa)
computers can » computers a (Expandir a Pesquisa), computers _ (Expandir a Pesquisa)
earl compared » early compared (Expandir a Pesquisa), heart compared (Expandir a Pesquisa), years compared (Expandir a Pesquisa)
acl compared » nacl compared (Expandir a Pesquisa), gel compared (Expandir a Pesquisa), ml compared (Expandir a Pesquisa)
a computers » a computer's (Expandir a Pesquisa), a computer (Expandir a Pesquisa), _ computers (Expandir a Pesquisa)
causes non » cause non (Expandir a Pesquisa)
compared a » compared _ (Expandir a Pesquisa), compare a (Expandir a Pesquisa), compare _ (Expandir a Pesquisa)
_ earl » _ early (Expandir a Pesquisa), _ ears (Expandir a Pesquisa)
3 acl » 3 acyl (Expandir a Pesquisa), _ acl (Expandir a Pesquisa), 3 act (Expandir a Pesquisa)
a non » _ non (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 a computers can new ) or ((( 3 acl compared causes non ) or ( _ earl compared a non ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j a computers can new ) OR ((( 3 acl compared causes non ) OR ( _ earl compared a non )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j a computers can new ) or ((( 3 acl compared causes non ) or ( _ earl compared a non ))))*.