Talvez deva tentar algumas variações de ortografia:
natl computers » small computers (Expandir a Pesquisa), units computers (Expandir a Pesquisa), panel computers (Expandir a Pesquisa)
diet comparing » diets comparing (Expandir a Pesquisa), drift comparing (Expandir a Pesquisa), dast comparing (Expandir a Pesquisa)
comparing case » comparing care (Expandir a Pesquisa), comparing close (Expandir a Pesquisa), comparing cancer (Expandir a Pesquisa)
computers can » computers a (Expandir a Pesquisa), computers _ (Expandir a Pesquisa)
computer case » computer based (Expandir a Pesquisa), computer age (Expandir a Pesquisa), computer code (Expandir a Pesquisa)
aix computer » a computer (Expandir a Pesquisa), udx computer (Expandir a Pesquisa), tex computer (Expandir a Pesquisa)
case now » cases now (Expandir a Pesquisa), case non (Expandir a Pesquisa), case new (Expandir a Pesquisa)
can now » can new (Expandir a Pesquisa), can non (Expandir a Pesquisa), can ngoc (Expandir a Pesquisa)
j diet » j dietz (Expandir a Pesquisa), 6j diet (Expandir a Pesquisa), j diez (Expandir a Pesquisa)
3 aix » _ aix (Expandir a Pesquisa), d aix (Expandir a Pesquisa), 3 atx (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: (((( _ natl computers can now ) or ( 3 aix computer case now ))) or ( j diet comparing case now ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( _ natl computers can now ) OR ( 3 aix computer case now ))) OR ( j diet comparing case now )).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( _ natl computers can now ) or ( 3 aix computer case now ))) or ( j diet comparing case now ))*.