Talvez deva tentar algumas variações de ortografia:
companies cars » companies cma's (Expandir a Pesquisa), companies case (Expandir a Pesquisa), companies can (Expandir a Pesquisa)
oil companies » _ companies (Expandir a Pesquisa)
nacl complex » nail complex (Expandir a Pesquisa), nac56 complex (Expandir a Pesquisa), nasal complex (Expandir a Pesquisa)
complex care » complex case (Expandir a Pesquisa)
compr can » comp can (Expandir a Pesquisa), computer can (Expandir a Pesquisa), compared can (Expandir a Pesquisa)
care now » care new (Expandir a Pesquisa)
cars new » wars new (Expandir a Pesquisa), care's new (Expandir a Pesquisa), caries new (Expandir a Pesquisa)
l compr » l comper (Expandir a Pesquisa), la compr (Expandir a Pesquisa), l comer (Expandir a Pesquisa)
5 nacl » 15 nacl (Expandir a Pesquisa), _ nacl (Expandir a Pesquisa), m nacl (Expandir a Pesquisa)
3 oil » 3 oils (Expandir a Pesquisa), _ oil (Expandir a Pesquisa), l oil (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 l compr can new ) OR ((( 5 nacl complex care now ) OR ( 3 oil companies cars new ))))~".
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j l compr can new ) OR ((( 5 nacl complex care now ) OR ( 3 oil companies cars new ))))*.