Talvez deva tentar algumas variações de ortografia:
elderly compared » elderly comparison (Expandir a Pesquisa), elderly care (Expandir a Pesquisa)
adl computers » aids computers (Expandir a Pesquisa), a computers (Expandir a Pesquisa), age computers (Expandir a Pesquisa)
computers dan » computers can (Expandir a Pesquisa), computers data (Expandir a Pesquisa), computers a (Expandir a Pesquisa)
nacl compared » acl compared (Expandir a Pesquisa), small compared (Expandir a Pesquisa), gel compared (Expandir a Pesquisa)
compared dan » compared can (Expandir a Pesquisa), comparee dans (Expandir a Pesquisa), compared a (Expandir a Pesquisa)
2 elderly » 72 elderly (Expandir a Pesquisa), e elderly (Expandir a Pesquisa), 102 elderly (Expandir a Pesquisa)
dan non » than non (Expandir a Pesquisa), dan ning (Expandir a Pesquisa)
3 nacl » _ nacl (Expandir a Pesquisa), m nacl (Expandir a Pesquisa), 3.5 nacl (Expandir a Pesquisa)
i adl » _ adl (Expandir a Pesquisa), i all (Expandir a Pesquisa), i adp (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: (( i adl computers dan non ) or ((( 3 nacl compared dan non ) or ( 2 elderly compared _ note ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( i adl computers dan non ) OR ((( 3 nacl compared dan non ) OR ( 2 elderly compared _ note )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( i adl computers dan non ) or ((( 3 nacl compared dan non ) or ( 2 elderly compared _ note ))))*.