Talvez deva tentar algumas variações de ortografia:
unit computers » units computers (Expandir a Pesquisa), unit computer (Expandir a Pesquisa), iet computers (Expandir a Pesquisa)
computers can » computers a (Expandir a Pesquisa), computers _ (Expandir a Pesquisa)
nmr compared » mr compared (Expandir a Pesquisa), pcr compared (Expandir a Pesquisa), ukr compared (Expandir a Pesquisa)
la compared » lfa compared (Expandir a Pesquisa), a compared (Expandir a Pesquisa), ra compared (Expandir a Pesquisa)
compared a » compare a (Expandir a Pesquisa), compare _ (Expandir a Pesquisa)
can now » can new (Expandir a Pesquisa), can non (Expandir a Pesquisa), can ngoc (Expandir a Pesquisa)
_ unit » _ united (Expandir a Pesquisa)
a now » a nowe (Expandir a Pesquisa), a new (Expandir a Pesquisa), a non (Expandir a Pesquisa)
j nmr » _ nmr (Expandir a Pesquisa), h nmr (Expandir a Pesquisa), c nmr (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: (((( a la compared a now ) or ( _ unit computers can now ))) or ( j nmr compared _ netw ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( a la compared a now ) OR ( _ unit computers can now ))) OR ( j nmr compared _ netw )).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( a la compared a now ) or ( _ unit computers can now ))) or ( j nmr compared _ netw ))*.