Talvez deva tentar algumas variações de ortografia:
what computers » how computers (Expandir a Pesquisa), iet computers (Expandir a Pesquisa), what consumers (Expandir a Pesquisa)
graft compared » grafting compared (Expandir a Pesquisa), graft combined (Expandir a Pesquisa)
compared case » compared cases (Expandir a Pesquisa), compared can (Expandir a Pesquisa), companies case (Expandir a Pesquisa)
narl compared » nacl compared (Expandir a Pesquisa), nail compared (Expandir a Pesquisa), early compared (Expandir a Pesquisa)
computers a » computers _ (Expandir a Pesquisa)
case new » cases new (Expandir a Pesquisa), cause new (Expandir a Pesquisa), caste new (Expandir a Pesquisa)
j graft » j grant (Expandir a Pesquisa), j graff (Expandir a Pesquisa), j graf (Expandir a Pesquisa)
_ narl » _ narp (Expandir a Pesquisa), _ nara (Expandir a Pesquisa)
a now » a new (Expandir a Pesquisa), a non (Expandir a Pesquisa), _ now (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 what computers a now ) or ((( j graft compared case new ) or ( _ narl compared _ non ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( a what computers a now ) OR ((( j graft compared case new ) OR ( _ narl compared _ non )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( a what computers a now ) or ((( j graft compared case new ) or ( _ narl compared _ non ))))*.