Talvez deva tentar algumas variações de ortografia:
computer based » computer aided (Expandir a Pesquisa)
nacl compared » al compared (Expandir a Pesquisa), panel compared (Expandir a Pesquisa), gel compared (Expandir a Pesquisa)
stay compared » assay compared (Expandir a Pesquisa), state compared (Expandir a Pesquisa), states compared (Expandir a Pesquisa)
del computer » dal computer (Expandir a Pesquisa), delta computer (Expandir a Pesquisa), model computer (Expandir a Pesquisa)
compared law » compared can (Expandir a Pesquisa), compared _ (Expandir a Pesquisa), company law (Expandir a Pesquisa)
compared a » compared _ (Expandir a Pesquisa)
based now » based snow (Expandir a Pesquisa), based non (Expandir a Pesquisa), based no2 (Expandir a Pesquisa)
3 nacl » _ nacl (Expandir a Pesquisa), 3.5 nacl (Expandir a Pesquisa)
j stay » j stacy (Expandir a Pesquisa), j stan (Expandir a Pesquisa), j stam (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 del computer based now ) or ((( 3 nacl compared a now ) or ( j stay compared law non ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( a del computer based now ) OR ((( 3 nacl compared a now ) OR ( j stay compared law non )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( a del computer based now ) or ((( 3 nacl compared a now ) or ( j stay compared law non ))))*.