Talvez deva tentar algumas variações de ortografia:
natl compared » nacl compared (Expandir a Pesquisa), nail compared (Expandir a Pesquisa), acl compared (Expandir a Pesquisa)
compared can » compared case (Expandir a Pesquisa), compared a (Expandir a Pesquisa), compared law (Expandir a Pesquisa)
had never » has never (Expandir a Pesquisa), have never (Expandir a Pesquisa), a never (Expandir a Pesquisa)
nat comp » et comp (Expandir a Pesquisa)
atf camp » auto camp (Expandir a Pesquisa), a camp (Expandir a Pesquisa), amp camp (Expandir a Pesquisa)
comp had » comp la (Expandir a Pesquisa), comp a (Expandir a Pesquisa), comp can (Expandir a Pesquisa)
camp ca » camp a (Expandir a Pesquisa), camp c (Expandir a Pesquisa), camp camp (Expandir a Pesquisa)
ca netw » ca net (Expandir a Pesquisa)
can now » can new (Expandir a Pesquisa), can non (Expandir a Pesquisa), can ngoc (Expandir a Pesquisa)
j natl » _ natl (Expandir a Pesquisa), j nail (Expandir a Pesquisa), j natali (Expandir a Pesquisa)
1 atf » 1 aatf (Expandir a Pesquisa), _ atf (Expandir a Pesquisa), 1 atp (Expandir a Pesquisa)
j nat » j nart (Expandir a Pesquisa), _ nat (Expandir a Pesquisa), e 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: (((( 1 atf camp ca netw ) or ( j nat comp had never ))) or ( j natl compared can now ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( 1 atf camp ca netw ) OR ( j nat comp had never ))) OR ( j natl compared can now )).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( 1 atf camp ca netw ) or ( j nat comp had never ))) or ( j natl compared can now ))*.