Talvez deva tentar algumas variações de ortografia:
computer based » computer aided (Expandir a Pesquisa)
nat compared » fat compared (Expandir a Pesquisa), rat compared (Expandir a Pesquisa), cat compared (Expandir a Pesquisa)
compared can » compared case (Expandir a Pesquisa), compared a (Expandir a Pesquisa), compared law (Expandir a Pesquisa)
based now » based snow (Expandir a Pesquisa), based non (Expandir a Pesquisa), based no2 (Expandir a Pesquisa)
can near » can never (Expandir a Pesquisa), can new (Expandir a Pesquisa)
c clamp » _ clamp (Expandir a Pesquisa)
clamp a » clamp _ (Expandir a Pesquisa), clamp j (Expandir a Pesquisa)
a newts » _ newts (Expandir a Pesquisa), a news (Expandir a Pesquisa), a newt (Expandir a Pesquisa)
j small » 1 small (Expandir a Pesquisa)
e nat » e nata (Expandir a Pesquisa), e nao (Expandir a Pesquisa), e nas (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: (((( e nat compared can near ) or ( j c clamp a newts ))) or ( j small computer based now ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( e nat compared can near ) OR ( j c clamp a newts ))) OR ( j small computer based now )).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( e nat compared can near ) or ( j c clamp a newts ))) or ( j small computer based now ))*.