Talvez deva tentar algumas variações de ortografia:
natl compared » nacl compared (Expandir a Pesquisa), nail compared (Expandir a Pesquisa), al compared (Expandir a Pesquisa)
computer case » computer based (Expandir a Pesquisa), computer code (Expandir a Pesquisa), computer can (Expandir a Pesquisa)
nat compared » fat compared (Expandir a Pesquisa), rat compared (Expandir a Pesquisa), cat compared (Expandir a Pesquisa)
compared can » compared law (Expandir a Pesquisa), companies can (Expandir a Pesquisa), compared _ (Expandir a Pesquisa)
nat computer » cat computer (Expandir a Pesquisa), fast computer (Expandir a Pesquisa), icat computer (Expandir a Pesquisa)
compared a » compared _ (Expandir a Pesquisa)
case netw » case net (Expandir a Pesquisa), case new (Expandir a Pesquisa), case note (Expandir a Pesquisa)
can netw » can new (Expandir a Pesquisa), can net (Expandir a Pesquisa), can newts (Expandir a Pesquisa)
e natl » e natal (Expandir a Pesquisa), e nata (Expandir a Pesquisa), _ natl (Expandir a Pesquisa)
a neta » a neto (Expandir a Pesquisa), a nectar (Expandir a Pesquisa)
e nat » e nata (Expandir a Pesquisa), e nao (Expandir a Pesquisa), e nas (Expandir a Pesquisa)
_ nat » _ net (Expandir a Pesquisa), _ nad (Expandir a Pesquisa), _ nab (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: (((( e natl compared a neta ) or ( e nat compared can netw ))) or ( _ nat computer case netw ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( e natl compared a neta ) OR ( e nat compared can netw ))) OR ( _ nat computer case netw )).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( e natl compared a neta ) or ( e nat compared can netw ))) or ( _ nat computer case netw ))*.