Talvez deva tentar algumas variações de ortografia:
elderly compared » elderly comparison (Expandir a Pesquisa), elderly care (Expandir a Pesquisa)
novel computer » novel complex (Expandir a Pesquisa)
computer based » computer aided (Expandir a Pesquisa)
rate compare » rate compared (Expandir a Pesquisa), rates compared (Expandir a Pesquisa), hydrate compare (Expandir a Pesquisa)
compared a » compared _ (Expandir a Pesquisa), compare _ (Expandir a Pesquisa)
based now » based snow (Expandir a Pesquisa), based non (Expandir a Pesquisa), based no2 (Expandir a Pesquisa)
j elderly » _ elderly (Expandir a Pesquisa), a elderly (Expandir a Pesquisa), 2 elderly (Expandir a Pesquisa)
compare a » compare _ (Expandir a Pesquisa)
j rate » j rane (Expandir a Pesquisa), j race (Expandir a Pesquisa), j rath (Expandir a Pesquisa)
a now » a new (Expandir a Pesquisa), a non (Expandir a Pesquisa), _ now (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: (( a novel computer based now ) or ((( j elderly compared a now ) or ( j rate compare a now ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( a novel computer based now ) OR ((( j elderly compared a now ) OR ( j rate compare a now )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( a novel computer based now ) or ((( j elderly compared a now ) or ( j rate compare a now ))))*.