Talvez deva tentar algumas variações de ortografia:
computer codes » computer code (Expandir a Pesquisa), computer models (Expandir a Pesquisa), computer model (Expandir a Pesquisa)
compared cause » compared case (Expandir a Pesquisa), compared cases (Expandir a Pesquisa), complex cause (Expandir a Pesquisa)
cost computer » joint computer (Expandir a Pesquisa), about computer (Expandir a Pesquisa), ut computer (Expandir a Pesquisa)
nat compared » fat compared (Expandir a Pesquisa), rat compared (Expandir a Pesquisa), cat compared (Expandir a Pesquisa)
codes new » codes et (Expandir a Pesquisa), codes law (Expandir a Pesquisa)
cause new » causes new (Expandir a Pesquisa), use new (Expandir a Pesquisa), cause non (Expandir a Pesquisa)
amp can » amp camp (Expandir a Pesquisa)
al amp » al ampa (Expandir a Pesquisa), yal amp (Expandir a Pesquisa), al amr (Expandir a Pesquisa)
j cost » j costa (Expandir a Pesquisa), j coast (Expandir a Pesquisa), j colt (Expandir a Pesquisa)
j nat » j nart (Expandir a Pesquisa), _ nat (Expandir a Pesquisa), e nat (Expandir a Pesquisa)
j al » j a (Expandir a Pesquisa), j l (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: (((( j al amp can new ) or ( j cost computer codes new ))) or ( j nat compared cause new ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( j al amp can new ) OR ( j cost computer codes new ))) OR ( j nat compared cause new )).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( j al amp can new ) or ( j cost computer codes new ))) or ( j nat compared cause new ))*.