Talvez deva tentar algumas variações de ortografia:
center nurses » cancer nurses (Expandir a Pesquisa), mental nurses (Expandir a Pesquisa), fever nurses (Expandir a Pesquisa)
nurses system » nurse system (Expandir a Pesquisa), courses system (Expandir a Pesquisa), nursery system (Expandir a Pesquisa)
deltoid nerve » delayed nerve (Expandir a Pesquisa)
letter nerve » letter nurse (Expandir a Pesquisa), matter nerve (Expandir a Pesquisa), letter nervous (Expandir a Pesquisa)
system dis » system dias (Expandir a Pesquisa), system dcs (Expandir a Pesquisa), system di (Expandir a Pesquisa)
a deltoid » _ deltoid (Expandir a Pesquisa), via deltoid (Expandir a Pesquisa), a deltaic (Expandir a Pesquisa)
c letter » a letter (Expandir a Pesquisa), i letter (Expandir a Pesquisa), c lester (Expandir a Pesquisa)
a center » a century (Expandir a Pesquisa)
case dis » case disc (Expandir a Pesquisa), case di (Expandir a Pesquisa), case does (Expandir a Pesquisa)
nerve a » nerve _ (Expandir a Pesquisa)

You can also try:

• Europeana
• Digital Public Library of America
• CORE

Pode obter mais resultados ajustando a pesquisa.

• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( c letter nerve a diet ) OR ( a center nurses system dis ))) OR ( a deltoid nerve case dis ))~.
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( c letter nerve a diet ) or ( a center nurses system dis ))) or ( a deltoid nerve case dis ))*.