Talvez deva tentar algumas variações de ortografia:
nat2 computer » data computer (Expandir a Pesquisa), nature computer (Expandir a Pesquisa), a computer (Expandir a Pesquisa)
computer case » computer based (Expandir a Pesquisa), computer code (Expandir a Pesquisa), computer can (Expandir a Pesquisa)
natl compared » nacl compared (Expandir a Pesquisa), nail compared (Expandir a Pesquisa), al compared (Expandir a Pesquisa)
compared can » compared a (Expandir a Pesquisa), compared law (Expandir a Pesquisa), companies can (Expandir a Pesquisa)
case note » case notes (Expandir a Pesquisa)
can netw » can net (Expandir a Pesquisa), can newts (Expandir a Pesquisa), can now (Expandir a Pesquisa)
comp can » camp can (Expandir a Pesquisa), chimp can (Expandir a Pesquisa), clamp can (Expandir a Pesquisa)
et comp » et compl (Expandir a Pesquisa), et comb (Expandir a Pesquisa), et com (Expandir a Pesquisa)
j natl » j nail (Expandir a Pesquisa), _ natl (Expandir a Pesquisa), j nat (Expandir a Pesquisa)
_ et » _ pet (Expandir a Pesquisa), _ net (Expandir a Pesquisa), _ get (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: (((( 2 nat2 computer case note ) or ( j natl compared can netw ))) or ( _ et comp can new ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( 2 nat2 computer case note ) OR ( j natl compared can netw ))) OR ( _ et comp can new )).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( 2 nat2 computer case note ) or ( j natl compared can netw ))) or ( _ et comp can new ))*.