Talvez deva tentar algumas variações de ortografia:
cancer nurses » cancer nursing (Expandir a Pesquisa)
nurses count » nurses could (Expandir a Pesquisa), nurses bound (Expandir a Pesquisa), nurses accounts (Expandir a Pesquisa)
mental nerve » ventral nerve (Expandir a Pesquisa), central nerve (Expandir a Pesquisa), renal nerve (Expandir a Pesquisa)
crest nerve » treat nerve (Expandir a Pesquisa), crest derived (Expandir a Pesquisa), current nerve (Expandir a Pesquisa)
count dis » count addis (Expandir a Pesquisa), count bias (Expandir a Pesquisa), count aids (Expandir a Pesquisa)
j cancer » j canter (Expandir a Pesquisa), j cantero (Expandir a Pesquisa), j candel (Expandir a Pesquisa)
case dis » case disc (Expandir a Pesquisa), case di (Expandir a Pesquisa), case does (Expandir a Pesquisa)
j mental » j mengual (Expandir a Pesquisa), j mena (Expandir a Pesquisa), j mehta (Expandir a Pesquisa)
i crest » i crestr (Expandir a Pesquisa), _ crest (Expandir a Pesquisa), a crest (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: (((( j cancer nurses count dis ) OR ( i crest nerve case dis ))) OR ( j mental nerve case dis ))~.
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( j cancer nurses count dis ) or ( i crest nerve case dis ))) or ( j mental nerve case dis ))*.