Talvez deva tentar algumas variações de ortografia:
can computers » can computer (Expandir a Pesquisa), than computers (Expandir a Pesquisa), can computed (Expandir a Pesquisa)
computers can » computers a (Expandir a Pesquisa), computers _ (Expandir a Pesquisa)
compared law » compared a (Expandir a Pesquisa), compared _ (Expandir a Pesquisa), company law (Expandir a Pesquisa)
ml compared » gel compared (Expandir a Pesquisa), oil compared (Expandir a Pesquisa), model compared (Expandir a Pesquisa)
can now » can new (Expandir a Pesquisa), can non (Expandir a Pesquisa), can ngoc (Expandir a Pesquisa)
law now » laws now (Expandir a Pesquisa), law new (Expandir a Pesquisa), law non (Expandir a Pesquisa)
e comb » e combs (Expandir a Pesquisa), e combu (Expandir a Pesquisa), e como (Expandir a Pesquisa)
comb a » comb _ (Expandir a Pesquisa), comb m (Expandir a Pesquisa), comb n (Expandir a Pesquisa)
a netw » a neto (Expandir a Pesquisa), a neta (Expandir a Pesquisa), a netb (Expandir a Pesquisa)
j can » j cano (Expandir a Pesquisa), j cant (Expandir a Pesquisa), _ can (Expandir a Pesquisa)
j ml » j m (Expandir a Pesquisa), j l (Expandir a Pesquisa), j al (Expandir a Pesquisa)

You can also try:

• Europeana
• Digital Public Library of America
• CORE

Pode obter mais resultados ajustando a pesquisa.

• "As palabras AND, OR e NOT podem gerar pesquisas incorrectas; tente utilizar aspas": "(((( j can computers can now ) OR ( j ml compared law now ))) OR ( j e comb a netw ))~".
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( j can computers can now ) OR ( j ml compared law now ))) OR ( j e comb a netw ))*.