Talvez deva tentar algumas variações de ortografia:
elderly compared » elderly comparison (Expandir a Pesquisa), elderly care (Expandir a Pesquisa)
compared cases » compared case (Expandir a Pesquisa), collared cases (Expandir a Pesquisa), compares bases (Expandir a Pesquisa)
nasal complexa » nasal complex (Expandir a Pesquisa), basal complex (Expandir a Pesquisa), nasal complete (Expandir a Pesquisa)
complexa can » complex can (Expandir a Pesquisa), complexes can (Expandir a Pesquisa), complexa acao (Expandir a Pesquisa)
nat compr » la compr (Expandir a Pesquisa)
compr can » comp can (Expandir a Pesquisa), computer can (Expandir a Pesquisa), compared can (Expandir a Pesquisa)
m elderly » e elderly (Expandir a Pesquisa), mid elderly (Expandir a Pesquisa), men elderly (Expandir a Pesquisa)
cases now » cases new (Expandir a Pesquisa), cases non (Expandir a Pesquisa), case now (Expandir a Pesquisa)
can near » can never (Expandir a Pesquisa)
3 nasal » b nasal (Expandir a Pesquisa), bi nasal (Expandir a Pesquisa), 3 nataly (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: (( _ nat compr can near ) or ((( m elderly compared cases now ) or ( 3 nasal complexa can new ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( _ nat compr can near ) OR ((( m elderly compared cases now ) OR ( 3 nasal complexa can new )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( _ nat compr can near ) or ((( m elderly compared cases now ) or ( 3 nasal complexa can new ))))*.