Talvez deva tentar algumas variações de ortografia:
elderly compared » elderly comparison (Expandir a Pesquisa), elderly care (Expandir a Pesquisa)
adults compared » adults comparison (Expandir a Pesquisa)
acl compared » nacl compared (Expandir a Pesquisa), gel compared (Expandir a Pesquisa), ml compared (Expandir a Pesquisa)
compared can » compared case (Expandir a Pesquisa), compared a (Expandir a Pesquisa), compared law (Expandir a Pesquisa)
compared i » compared ii (Expandir a Pesquisa), compared a (Expandir a Pesquisa), compared de (Expandir a Pesquisa)
a elderly » _ elderly (Expandir a Pesquisa)
2 adults » _ adults (Expandir a Pesquisa), 2 adult (Expandir a Pesquisa)
i note » i notes (Expandir a Pesquisa), ii note (Expandir a Pesquisa), vi note (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: (( 2 adults compared i note ) or ((( 3 acl compared can new ) or ( a elderly compared _ now ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( 2 adults compared i note ) OR ((( 3 acl compared can new ) OR ( a elderly compared _ now )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( 2 adults compared i note ) or ((( 3 acl compared can new ) or ( a elderly compared _ now ))))*.