Talvez deva tentar algumas variações de ortografia:
compared flow » compared law (Expandir a Pesquisa), compare low (Expandir a Pesquisa), compare slow (Expandir a Pesquisa)
its companies » its companion (Expandir a Pesquisa), us companies (Expandir a Pesquisa), u.s companies (Expandir a Pesquisa)
gas companies » _ companies (Expandir a Pesquisa)
ct compared » test compared (Expandir a Pesquisa)
companies a » companies _ (Expandir a Pesquisa)
flow noise » low noise (Expandir a Pesquisa), from noise (Expandir a Pesquisa), how noise (Expandir a Pesquisa)
a its » _ its (Expandir a Pesquisa), i its (Expandir a Pesquisa)
a now » a new (Expandir a Pesquisa), a non (Expandir a Pesquisa), _ now (Expandir a Pesquisa)
e gas » _ gas (Expandir a Pesquisa), a gas (Expandir a Pesquisa)
j ct » j c (Expandir a Pesquisa), j st (Expandir a Pesquisa), j et (Expandir a Pesquisa)

You can also try:

• Europeana
• Digital Public Library of America
• CORE

Pode obter mais resultados ajustando a pesquisa.

• Se retirar as aspas poderá fazer uma pesquisa mais abragente: (( j ct compared flow noise ) or ((( a its companies a now ) or ( e gas companies a now ))))~.