Talvez deva tentar algumas variações de ortografia:
affected neural » affected neuronal (Expandir a Pesquisa), affects neural (Expandir a Pesquisa), affect neural (Expandir a Pesquisa)
currell survey » current survey (Expandir a Pesquisa), current surveys (Expandir a Pesquisa), cell survey (Expandir a Pesquisa)
eye affected » eyes affected (Expandir a Pesquisa), dye affected (Expandir a Pesquisa), were affected (Expandir a Pesquisa)
neural case » neutral case (Expandir a Pesquisa), neural causes (Expandir a Pesquisa), neural phase (Expandir a Pesquisa)
j currell » a hurrell (Expandir a Pesquisa), m burrell (Expandir a Pesquisa), j curiel (Expandir a Pesquisa)
survey do » survey da (Expandir a Pesquisa), survey di (Expandir a Pesquisa), survey does (Expandir a Pesquisa)
case dis » case disc (Expandir a Pesquisa), case di (Expandir a Pesquisa), case does (Expandir a Pesquisa)
do de » do dr (Expandir a Pesquisa), do ce (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 currell survey do de ) OR ( eye affected neural case dis ))~.
• "As palabras AND, OR e NOT podem gerar pesquisas incorrectas; tente utilizar aspas": "(( j currell survey do de ) OR ( eye affected neural case dis ))*".