Talvez deva tentar algumas variações de ortografia:
elderly comparison » elderly compared (Expandir a Pesquisa)
comparison can » comparisons can (Expandir a Pesquisa), comparison cam (Expandir a Pesquisa), comparison case (Expandir a Pesquisa)
compared case » compared cases (Expandir a Pesquisa), compare care (Expandir a Pesquisa), compared can (Expandir a Pesquisa)
acl compared » nacl compared (Expandir a Pesquisa), al compared (Expandir a Pesquisa), gel compared (Expandir a Pesquisa)
j elderly » _ elderly (Expandir a Pesquisa), a elderly (Expandir a Pesquisa), 2 elderly (Expandir a Pesquisa)
case new » cases new (Expandir a Pesquisa), cause new (Expandir a Pesquisa), caste new (Expandir a Pesquisa)
can ngoc » van ngoc (Expandir a Pesquisa), tran ngoc (Expandir a Pesquisa), phan ngoc (Expandir a Pesquisa)
j acl » _ acl (Expandir a Pesquisa), j cl (Expandir a Pesquisa), j adl (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 acl compared case new ) or ( j elderly comparison can ngoc ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j acl compared case new ) OR ( j elderly comparison can ngoc ))*.