Talvez deva tentar algumas variações de ortografia:
compared laws » compared law (Expandir a Pesquisa), compared less (Expandir a Pesquisa), compiled laws (Expandir a Pesquisa)
pml compared » ml compared (Expandir a Pesquisa), pull compared (Expandir a Pesquisa), gel compared (Expandir a Pesquisa)
chimp can » chip can (Expandir a Pesquisa), chirp can (Expandir a Pesquisa), clamp can (Expandir a Pesquisa)
cpt camp » spot camp (Expandir a Pesquisa), cl camp (Expandir a Pesquisa)
camp can » clamp can (Expandir a Pesquisa), camp ca (Expandir a Pesquisa), amp can (Expandir a Pesquisa)
can netw » can net (Expandir a Pesquisa), can newts (Expandir a Pesquisa), can now (Expandir a Pesquisa)
laws e » laws _ (Expandir a Pesquisa), laws j (Expandir a Pesquisa), laws a (Expandir a Pesquisa)
j nat » j nart (Expandir a Pesquisa), _ nat (Expandir a Pesquisa), e nat (Expandir a Pesquisa)
j cpt » _ cpt (Expandir a Pesquisa), i cpt (Expandir a Pesquisa), 8 cpt (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 nat chimp can new ) OR ( _ pml compared laws e ))) OR ( j cpt camp can netw ))~".
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( j nat chimp can new ) OR ( _ pml compared laws e ))) OR ( j cpt camp can netw ))*.