Talvez deva tentar algumas variações de ortografia:
ethics easton » ethics eastern (Expandir a Pesquisa)
ethics past » ethics case (Expandir a Pesquisa), ethics art (Expandir a Pesquisa), ethics cases (Expandir a Pesquisa)
need ethics » based ethics (Expandir a Pesquisa)
ethics east » ethics case (Expandir a Pesquisa), ethics art (Expandir a Pesquisa), ethics eastern (Expandir a Pesquisa)
med ethics » media ethics (Expandir a Pesquisa), meta ethics (Expandir a Pesquisa), meat ethics (Expandir a Pesquisa)
easton m.d » heuston m.d (Expandir a Pesquisa), marston m.d (Expandir a Pesquisa), easton d (Expandir a Pesquisa)
east named » east james (Expandir a Pesquisa), last name (Expandir a Pesquisa), last names (Expandir a Pesquisa)
past m.d » east m.d (Expandir a Pesquisa), past mid (Expandir a Pesquisa), post m.d (Expandir a Pesquisa)
j need » a need (Expandir a Pesquisa), j neep (Expandir a Pesquisa), j neel (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 med ethics easton m.d ) or ( j med ethics past m.d ))) or ( j need ethics east named ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( j med ethics easton m.d ) OR ( j med ethics past m.d ))) OR ( j need ethics east named )).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( j med ethics easton m.d ) or ( j med ethics past m.d ))) or ( j need ethics east named ))*.