Talvez deva tentar algumas variações de ortografia:
under computer » under computed (Expandir a Pesquisa), user computer (Expandir a Pesquisa), modern computer (Expandir a Pesquisa)
unit computer » units computers (Expandir a Pesquisa), tunis computer (Expandir a Pesquisa), ut computer (Expandir a Pesquisa)
nacl compared » acl compared (Expandir a Pesquisa), small compared (Expandir a Pesquisa), gel compared (Expandir a Pesquisa)
computer can » computers can (Expandir a Pesquisa), computer case (Expandir a Pesquisa), computer code (Expandir a Pesquisa)
compared can » compared case (Expandir a Pesquisa), compared a (Expandir a Pesquisa), compared law (Expandir a Pesquisa)
computer a » computer _ (Expandir a Pesquisa)
can near » can never (Expandir a Pesquisa)
j under » tj under (Expandir a Pesquisa), j unger (Expandir a Pesquisa), j undem (Expandir a Pesquisa)
j nacl » m nacl (Expandir a Pesquisa), b nacl (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: (((( 3 unit computer a neto ) or ( j under computer can near ))) or ( j nacl compared can new ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( 3 unit computer a neto ) OR ( j under computer can near ))) OR ( j nacl compared can new )).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( 3 unit computer a neto ) or ( j under computer can near ))) or ( j nacl compared can new ))*.