Talvez deva tentar algumas variações de ortografia:
dairy companies » family companies (Expandir a Pesquisa), city companies (Expandir a Pesquisa), railway companies (Expandir a Pesquisa)
rates compared » diabetes compared (Expandir a Pesquisa)
companies can » companies case (Expandir a Pesquisa), companies a (Expandir a Pesquisa), companies cut (Expandir a Pesquisa)
computer a » computer _ (Expandir a Pesquisa)
compared a » compared _ (Expandir a Pesquisa), compare a (Expandir a Pesquisa), compare _ (Expandir a Pesquisa)
j dairy » j daisy (Expandir a Pesquisa), f1 dairy (Expandir a Pesquisa), h7 dairy (Expandir a Pesquisa)
can non » dan non (Expandir a Pesquisa), than non (Expandir a Pesquisa)
j rates » j raes (Expandir a Pesquisa), j ramesh (Expandir a Pesquisa), j rajesh (Expandir a Pesquisa)
a non » _ non (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 small computer a non ) OR ((( j dairy companies can non ) OR ( j rates compared a new ))))~".
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( a small computer a non ) OR ((( j dairy companies can non ) OR ( j rates compared a new ))))*.