Talvez deva tentar algumas variações de ortografia:
compared laws » compared law (Expandir a Pesquisa), compared less (Expandir a Pesquisa), compiled laws (Expandir a Pesquisa)
cml compared » ml compared (Expandir a Pesquisa), cell compared (Expandir a Pesquisa), gel compared (Expandir a Pesquisa)
nat clamp » dnan clamp (Expandir a Pesquisa), a clamp (Expandir a Pesquisa), dna clamp (Expandir a Pesquisa)
clamp can » clamp a (Expandir a Pesquisa), clamp ar (Expandir a Pesquisa), clamp cum (Expandir a Pesquisa)
nat comp » et comp (Expandir a Pesquisa), nat cov (Expandir a Pesquisa)
comp can » camp can (Expandir a Pesquisa), chimp can (Expandir a Pesquisa), comp la (Expandir a Pesquisa)
can near » can never (Expandir a Pesquisa)
laws do » laws d (Expandir a Pesquisa), laws how (Expandir a Pesquisa)
j nat » j nart (Expandir a Pesquisa), _ nat (Expandir a Pesquisa), a nat (Expandir a Pesquisa)
_ cml » _ cmv (Expandir a Pesquisa), _ cmr (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 comp can new ) OR ( _ cml compared laws do ))) OR ( j nat clamp can near ))~".
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( j nat comp can new ) OR ( _ cml compared laws do ))) OR ( j nat clamp can near ))*.