Talvez deva tentar algumas variações de ortografia:
effect natural » affect natural (Expandir a Pesquisa), affects natural (Expandir a Pesquisa), effect neural (Expandir a Pesquisa)
curran carmel » curran charles (Expandir a Pesquisa), curran james (Expandir a Pesquisa), moran carmel (Expandir a Pesquisa)
carmel cross » carmela cross (Expandir a Pesquisa), carmel gross (Expandir a Pesquisa), carmela gross (Expandir a Pesquisa)
natural case » natural cases (Expandir a Pesquisa), natural cause (Expandir a Pesquisa), natural causes (Expandir a Pesquisa)
age effect » age effects (Expandir a Pesquisa), acute effect (Expandir a Pesquisa)
cross due » cross drug (Expandir a Pesquisa), cross dale (Expandir a Pesquisa), cross diet (Expandir a Pesquisa)
case does » cases does (Expandir a Pesquisa), cause does (Expandir a Pesquisa), base does (Expandir a Pesquisa)
j curran » j currie (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 curran carmel cross due ) or ( age effect natural case does ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j curran carmel cross due ) OR ( age effect natural case does ))*.