Talvez deva tentar algumas variações de ortografia:
modern computer » fortran computer (Expandir a Pesquisa)
computer based » computer aided (Expandir a Pesquisa)
gel compared » model compared (Expandir a Pesquisa), level compared (Expandir a Pesquisa)
compared can » compared case (Expandir a Pesquisa), compared law (Expandir a Pesquisa), companies can (Expandir a Pesquisa)
net compared » nets compared (Expandir a Pesquisa), next compared (Expandir a Pesquisa), pet compared (Expandir a Pesquisa)
compared a » compared _ (Expandir a Pesquisa), compare a (Expandir a Pesquisa), compare _ (Expandir a Pesquisa)
based now » based snow (Expandir a Pesquisa), based non (Expandir a Pesquisa), based no2 (Expandir a Pesquisa)
j gel » j gelb (Expandir a Pesquisa), j gerl (Expandir a Pesquisa), _ gel (Expandir a Pesquisa)
_ net » _ new (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: (( _ modern computer based now ) or ((( j gel compared can new ) or ( _ net compared a new ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( _ modern computer based now ) OR ((( j gel compared can new ) OR ( _ net compared a new )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( _ modern computer based now ) or ((( j gel compared can new ) or ( _ net compared a new ))))*.