Talvez deva tentar algumas variações de ortografia:
computer based » computer aided (Expandir a Pesquisa)
basal complex » metal complex (Expandir a Pesquisa)
complex can » complex case (Expandir a Pesquisa), complex care (Expandir a Pesquisa), complex cell (Expandir a Pesquisa)
based now » based snow (Expandir a Pesquisa), based non (Expandir a Pesquisa), based no2 (Expandir a Pesquisa)
nat comp » et comp (Expandir a Pesquisa)
comp can » camp can (Expandir a Pesquisa), chimp can (Expandir a Pesquisa), clamp can (Expandir a Pesquisa)
j basal » j basil (Expandir a Pesquisa), j badal (Expandir a Pesquisa), j basile (Expandir a Pesquisa)
can now » can non (Expandir a Pesquisa), can ngoc (Expandir a Pesquisa)
j nat » j nart (Expandir a Pesquisa), _ nat (Expandir a Pesquisa), e nat (Expandir a Pesquisa)
_ um » _ sum (Expandir a Pesquisa), _ gum (Expandir a Pesquisa), _ uma (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 nat comp can new ) or ((( j basal complex can now ) or ( _ um computer based now ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j nat comp can new ) OR ((( j basal complex can now ) OR ( _ um computer based now )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j nat comp can new ) or ((( j basal complex can now ) or ( _ um computer based now ))))*.