Talvez deva tentar algumas variações de ortografia:
about computers » about computer (Expandir a Pesquisa), tablet computers (Expandir a Pesquisa), output computers (Expandir a Pesquisa)
computers than » computers can (Expandir a Pesquisa), computers chap (Expandir a Pesquisa), computers within (Expandir a Pesquisa)
daily compared » early compared (Expandir a Pesquisa), elderly compared (Expandir a Pesquisa)
nacl compared » acl compared (Expandir a Pesquisa), small compared (Expandir a Pesquisa), gel compared (Expandir a Pesquisa)
compared thaw » compared law (Expandir a Pesquisa), comparing thaw (Expandir a Pesquisa), compared a (Expandir a Pesquisa)
thaw non » law non (Expandir a Pesquisa)
3 about » 33 about (Expandir a Pesquisa), a about (Expandir a Pesquisa), 19 about (Expandir a Pesquisa)
2 daily » _ daily (Expandir a Pesquisa), a daily (Expandir a Pesquisa), d daily (Expandir a Pesquisa)
j nacl » _ nacl (Expandir a Pesquisa), 3 nacl (Expandir a Pesquisa), a nacl (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: (( 3 about computers than non ) or ((( j nacl compared _ non ) or ( 2 daily compared thaw non ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( 3 about computers than non ) OR ((( j nacl compared _ non ) OR ( 2 daily compared thaw non )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( 3 about computers than non ) or ((( j nacl compared _ non ) or ( 2 daily compared thaw non ))))*.