Talvez deva tentar algumas variações de ortografia:
cost computer » chest computed (Expandir a Pesquisa), joint computer (Expandir a Pesquisa), about computer (Expandir a Pesquisa)
computer case » computer based (Expandir a Pesquisa), computer code (Expandir a Pesquisa), computer crime (Expandir a Pesquisa)
rats compared » rates compared (Expandir a Pesquisa)
natl complex » nata complex (Expandir a Pesquisa), mutl complex (Expandir a Pesquisa), all complex (Expandir a Pesquisa)
complex than » complex trait (Expandir a Pesquisa)
compared a » compared _ (Expandir a Pesquisa), compare a (Expandir a Pesquisa), compare _ (Expandir a Pesquisa)
case now » cases now (Expandir a Pesquisa), case non (Expandir a Pesquisa), case new (Expandir a Pesquisa)
j cost » j costa (Expandir a Pesquisa), j coast (Expandir a Pesquisa), j colt (Expandir a Pesquisa)
_ natl » _ natal (Expandir a Pesquisa), _ nat'l (Expandir a Pesquisa), _ nato (Expandir a Pesquisa)
j rats » j rath (Expandir a Pesquisa), j raes (Expandir a Pesquisa), rij rats (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: (((( j cost computer case now ) or ( _ natl complex than non ))) or ( j rats compared a now ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( j cost computer case now ) OR ( _ natl complex than non ))) OR ( j rats compared a now )).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( j cost computer case now ) or ( _ natl complex than non ))) or ( j rats compared a now ))*.