Talvez deva tentar algumas variações de ortografia:
comparing cause » comparing causes (Expandir a Pesquisa), comparing case (Expandir a Pesquisa), comparing causal (Expandir a Pesquisa)
nat comparing » fat comparing (Expandir a Pesquisa), unit comparing (Expandir a Pesquisa), dast comparing (Expandir a Pesquisa)
a computer » _ computer (Expandir a Pesquisa)
computer a » computer _ (Expandir a Pesquisa)
cause new » causes new (Expandir a Pesquisa), use new (Expandir a Pesquisa), cause non (Expandir a Pesquisa)
a combe » la combe (Expandir a Pesquisa), a combes (Expandir a Pesquisa), a comb (Expandir a Pesquisa)
combe c » combe b (Expandir a Pesquisa)
c newts » _ newts (Expandir a Pesquisa), can newts (Expandir a Pesquisa), c newton (Expandir a Pesquisa)
a netw » a neto (Expandir a Pesquisa), a neta (Expandir a Pesquisa), a netb (Expandir a Pesquisa)
j nat » j nart (Expandir a Pesquisa), _ nat (Expandir a Pesquisa), a nat (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 a computer a netw ) or ( j a combe c newts ))) or ( j nat comparing cause new ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( j a computer a netw ) OR ( j a combe c newts ))) OR ( j nat comparing cause new )).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( j a computer a netw ) or ( j a combe c newts ))) or ( j nat comparing cause new ))*.