Talvez deva tentar algumas variações de ortografia:
unit computer » units computers (Expandir a Pesquisa), tunis computer (Expandir a Pesquisa), ut computer (Expandir a Pesquisa)
stay compared » assay compared (Expandir a Pesquisa), state compared (Expandir a Pesquisa), spray compared (Expandir a Pesquisa)
computer can » computers can (Expandir a Pesquisa), computer case (Expandir a Pesquisa), computer a (Expandir a Pesquisa)
compared law » compared a (Expandir a Pesquisa), compared _ (Expandir a Pesquisa), company law (Expandir a Pesquisa)
law noise » low noise (Expandir a Pesquisa), flow noise (Expandir a Pesquisa), how noise (Expandir a Pesquisa)
can netw » can new (Expandir a Pesquisa), can newts (Expandir a Pesquisa), can now (Expandir a Pesquisa)
camp can » clamp can (Expandir a Pesquisa), camp ca (Expandir a Pesquisa), amp can (Expandir a Pesquisa)
can non » dan non (Expandir a Pesquisa), than non (Expandir a Pesquisa)
j unit » j unio (Expandir a Pesquisa)
j stay » j stacy (Expandir a Pesquisa), j stan (Expandir a Pesquisa), j stam (Expandir a Pesquisa)

You can also try:

• Europeana
• Digital Public Library of America
• CORE

Pode obter mais resultados ajustando a pesquisa.

• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( j unit computer can netw ) OR ( j a camp can non ))) OR ( j stay compared law noise ))~.
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( j unit computer can netw ) or ( j a camp can non ))) or ( j stay compared law noise ))*.