Talvez deva tentar algumas variações de ortografia:
comparing causes » competing causes (Expandir a Pesquisa), comparing case (Expandir a Pesquisa), comparing changes (Expandir a Pesquisa)
nary computers » cars computers (Expandir a Pesquisa), board computers (Expandir a Pesquisa), large computers (Expandir a Pesquisa)
nayl comparing » al comparing (Expandir a Pesquisa), all comparing (Expandir a Pesquisa), small comparing (Expandir a Pesquisa)
nail computer » daily computer (Expandir a Pesquisa), dal computer (Expandir a Pesquisa), il computer (Expandir a Pesquisa)
computer aid » computer aided (Expandir a Pesquisa), computer a (Expandir a Pesquisa), computer age (Expandir a Pesquisa)
causes now » causes non (Expandir a Pesquisa), causes new (Expandir a Pesquisa), causes nox2 (Expandir a Pesquisa)
aid nowe » aid lower (Expandir a Pesquisa), aid noise (Expandir a Pesquisa), aid power (Expandir a Pesquisa)
j nary » j nagy (Expandir a Pesquisa), j nare (Expandir a Pesquisa), j narr (Expandir a Pesquisa)
j nayl » a nayl (Expandir a Pesquisa), j nay (Expandir a Pesquisa), j nail (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 nary computers _ now ) OR ( _ nail computer aid nowe ))) OR ( j nayl comparing causes now ))~.
• "As palabras AND, OR e NOT podem gerar pesquisas incorrectas; tente utilizar aspas": "(((( j nary computers _ now ) OR ( _ nail computer aid nowe ))) OR ( j nayl comparing causes now ))".
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( j nary computers _ now ) OR ( _ nail computer aid nowe ))) OR ( j nayl comparing causes now ))*.