Talvez deva tentar algumas variações de ortografia:
companies cause » companies case (Expandir a Pesquisa), companies use (Expandir a Pesquisa), companies accused (Expandir a Pesquisa)
oil companies » _ companies (Expandir a Pesquisa)
covered cause » covered case (Expandir a Pesquisa), covered gauze (Expandir a Pesquisa), covered use (Expandir a Pesquisa)
fact complex » factor complex (Expandir a Pesquisa), factor complexes (Expandir a Pesquisa), coat complex (Expandir a Pesquisa)
complex law » complex low (Expandir a Pesquisa), complex lag (Expandir a Pesquisa), complex la (Expandir a Pesquisa)
cause new » causes new (Expandir a Pesquisa), use new (Expandir a Pesquisa), cause non (Expandir a Pesquisa)
law netw » law new (Expandir a Pesquisa), law note (Expandir a Pesquisa), law need (Expandir a Pesquisa)
a areas » a area (Expandir a Pesquisa), sea areas (Expandir a Pesquisa)
j fact » _ fact (Expandir a Pesquisa), a fact (Expandir a Pesquisa), 2 fact (Expandir a Pesquisa)
l oil » _ oil (Expandir a Pesquisa)

You can also try:

• Europeana
• Digital Public Library of America
• CORE

Pode obter mais resultados ajustando a pesquisa.

• Performing a fuzzy search may retrieve terms with similar spellings: (( j fact complex law netw ) or ((( l oil companies cause new ) or ( a areas covered cause new ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j fact complex law netw ) OR ((( l oil companies cause new ) OR ( a areas covered cause new )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j fact complex law netw ) or ((( l oil companies cause new ) or ( a areas covered cause new ))))*.