Talvez deva tentar algumas variações de ortografia:
elderly compared » elderly comparison (Expandir a Pesquisa), elderly care (Expandir a Pesquisa)
computer based » computer aided (Expandir a Pesquisa)
del computer » dal computer (Expandir a Pesquisa), delta computer (Expandir a Pesquisa), model computer (Expandir a Pesquisa)
computer age » computer image (Expandir a Pesquisa), computer a (Expandir a Pesquisa), computer aided (Expandir a Pesquisa)
tex computer » udx computer (Expandir a Pesquisa), after computer (Expandir a Pesquisa), beam computer (Expandir a Pesquisa)
compared law » compared a (Expandir a Pesquisa), compared _ (Expandir a Pesquisa), company law (Expandir a Pesquisa)
j elderly » e elderly (Expandir a Pesquisa), do elderly (Expandir a Pesquisa), 86 elderly (Expandir a Pesquisa)
age now » age new (Expandir a Pesquisa), care now (Expandir a Pesquisa)
law now » laws now (Expandir a Pesquisa), law new (Expandir a Pesquisa), law non (Expandir a Pesquisa)
j tex » j ten (Expandir a Pesquisa), j ter (Expandir a Pesquisa), _ tex (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: (((( y del computer age now ) or ( j tex computer based non ))) or ( j elderly compared law now ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( y del computer age now ) OR ( j tex computer based non ))) OR ( j elderly compared law now )).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( y del computer age now ) or ( j tex computer based non ))) or ( j elderly compared law now ))*.