Talvez deva tentar algumas variações de ortografia:
elderly compared » elderly comparison (Expandir a Pesquisa), elderly care (Expandir a Pesquisa)
based outcome » based outcomes (Expandir a Pesquisa)
outcome can » outcomes can (Expandir a Pesquisa), outcome case (Expandir a Pesquisa), outcome a (Expandir a Pesquisa)
compared a » compared _ (Expandir a Pesquisa), compare a (Expandir a Pesquisa), compare _ (Expandir a Pesquisa)
comer can » omer can (Expandir a Pesquisa), comer dan (Expandir a Pesquisa), comes can (Expandir a Pesquisa)
can newts » can new (Expandir a Pesquisa), can newly (Expandir a Pesquisa)
l comer » al comer (Expandir a Pesquisa), el comer (Expandir a Pesquisa), all comer (Expandir a Pesquisa)
can non » dan non (Expandir a Pesquisa), than non (Expandir a Pesquisa)
note » none (Expandir a Pesquisa), node (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 l comer can newts ) or ((( _ elderly compared a note ) or ( 3 based outcome can non ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j l comer can newts ) OR ((( _ elderly compared a note ) OR ( 3 based outcome can non )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j l comer can newts ) or ((( _ elderly compared a note ) or ( 3 based outcome can non ))))*.