Talvez deva tentar algumas variações de ortografia:
elderly compared » elderly comparison (Expandir a Pesquisa), elderly care (Expandir a Pesquisa)
compared cause » compared case (Expandir a Pesquisa), compared cases (Expandir a Pesquisa), complex cause (Expandir a Pesquisa)
compared thaw » compared law (Expandir a Pesquisa), compared three (Expandir a Pesquisa), comparing thaw (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)
computers a » computers _ (Expandir a Pesquisa)
cause non » causes non (Expandir a Pesquisa)
a elderly » _ elderly (Expandir a Pesquisa)
thaw non » law non (Expandir a Pesquisa)
a now » a new (Expandir a Pesquisa), a non (Expandir a Pesquisa), _ now (Expandir a Pesquisa)
3 acl » 3 acyl (Expandir a Pesquisa), _ acl (Expandir a Pesquisa), 3 act (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 a now ) or ((( 3 acl compared cause non ) or ( a elderly compared thaw non ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j a computers a now ) OR ((( 3 acl compared cause non ) OR ( a elderly compared thaw non )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j a computers a now ) or ((( 3 acl compared cause non ) or ( a elderly compared thaw non ))))*.