Talvez deva tentar algumas variações de ortografia:
natl compared » nacl compared (Expandir a Pesquisa), nail compared (Expandir a Pesquisa), acl compared (Expandir a Pesquisa)
compared can » compared case (Expandir a Pesquisa), compared law (Expandir a Pesquisa), compared cases (Expandir a Pesquisa)
nat compared » fat compared (Expandir a Pesquisa), rat compared (Expandir a Pesquisa), cat compared (Expandir a Pesquisa)
compared a » compared _ (Expandir a Pesquisa), compare a (Expandir a Pesquisa), compare _ (Expandir a Pesquisa)
net hoop » net coop (Expandir a Pesquisa), de hoop (Expandir a Pesquisa), der hoop (Expandir a Pesquisa)
hoop bas » hoop barns (Expandir a Pesquisa), hoop barn (Expandir a Pesquisa), loop base (Expandir a Pesquisa)
bas ngoc » bao ngoc (Expandir a Pesquisa), ha ngoc (Expandir a Pesquisa), van ngoc (Expandir a Pesquisa)
j natl » _ natl (Expandir a Pesquisa), j nail (Expandir a Pesquisa), j natali (Expandir a Pesquisa)
a netb » a neto (Expandir a Pesquisa), _ netb (Expandir a Pesquisa), a neta (Expandir a Pesquisa)
j nat » j nart (Expandir a Pesquisa), _ nat (Expandir a Pesquisa), e nat (Expandir a Pesquisa)
_ net » _ new (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 natl compared can new ) OR ( j nat compared a netb ))) OR ( _ net hoop bas ngoc ))~".
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( j natl compared can new ) OR ( j nat compared a netb ))) OR ( _ net hoop bas ngoc ))*.