Talvez deva tentar algumas variações de ortografia:
heard compared » heart compared (Expandir a Pesquisa), hard compared (Expandir a Pesquisa), gepard compared (Expandir a Pesquisa)
unit computer » units computers (Expandir a Pesquisa), tunis computer (Expandir a Pesquisa), ut computer (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)
narr camp » war camp (Expandir a Pesquisa), arr cam (Expandir a Pesquisa), ar camp (Expandir a Pesquisa)
camp can » clamp can (Expandir a Pesquisa), camp ca (Expandir a Pesquisa), amp can (Expandir a Pesquisa)
can netw » can newts (Expandir a Pesquisa), can now (Expandir a Pesquisa), can near (Expandir a Pesquisa)
j heard » j head (Expandir a Pesquisa), j heyward (Expandir a Pesquisa)
a netb » a neto (Expandir a Pesquisa), _ netb (Expandir a Pesquisa), a neta (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: (((( _ unit computer a netb ) or ( l narr camp can netw ))) or ( j heard compared can new ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( _ unit computer a netb ) OR ( l narr camp can netw ))) OR ( j heard compared can new )).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( _ unit computer a netb ) or ( l narr camp can netw ))) or ( j heard compared can new ))*.