Talvez deva tentar algumas variações de ortografia:
raiz company » rail company (Expandir a Pesquisa), bain company (Expandir a Pesquisa), fruit company (Expandir a Pesquisa)
company case » company based (Expandir a Pesquisa), company a (Expandir a Pesquisa)
oil company » oil companies (Expandir a Pesquisa)
company cpr » company car (Expandir a Pesquisa), company cars (Expandir a Pesquisa), company bor (Expandir a Pesquisa)
case new » cases new (Expandir a Pesquisa), cause new (Expandir a Pesquisa), caste new (Expandir a Pesquisa)
cpr now » apmr now (Expandir a Pesquisa)
a raiz » la raiz (Expandir a Pesquisa), da raiz (Expandir a Pesquisa)
al com » al como (Expandir a Pesquisa)
m oil » em oil (Expandir a Pesquisa), _ oil (Expandir a Pesquisa), l oil (Expandir a Pesquisa)
j al » j a (Expandir a Pesquisa), j l (Expandir a Pesquisa)
cana » can (Expandir a Pesquisa), cada (Expandir a Pesquisa), casa (Expandir a Pesquisa)
netw » net (Expandir a Pesquisa), neto (Expandir a Pesquisa), nets (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": "(((( a raiz company case new ) OR ( m oil company cpr now ))) OR ( j al com cana netw ))~".
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( a raiz company case new ) OR ( m oil company cpr now ))) OR ( j al com cana netw ))*.