Talvez deva tentar algumas variações de ortografia:
hdl computers » held computers (Expandir a Pesquisa), hole computers (Expandir a Pesquisa), vhdl computer (Expandir a Pesquisa)
computers can » computers a (Expandir a Pesquisa), computers _ (Expandir a Pesquisa)
oils compared » oil compared (Expandir a Pesquisa), models compared (Expandir a Pesquisa), skills compared (Expandir a Pesquisa)
days compared » assays compared (Expandir a Pesquisa), lens compared (Expandir a Pesquisa)
compared law » compared _ (Expandir a Pesquisa), company law (Expandir a Pesquisa), compare a (Expandir a Pesquisa)
compared a » compared _ (Expandir a Pesquisa), compare a (Expandir a Pesquisa), compare _ (Expandir a Pesquisa)
can now » can new (Expandir a Pesquisa), can non (Expandir a Pesquisa), can ngoc (Expandir a Pesquisa)
law non » law note (Expandir a Pesquisa), thaw non (Expandir a Pesquisa)
j days » j davys (Expandir a Pesquisa), j daas (Expandir a Pesquisa)
a hdl » la hdl (Expandir a Pesquisa), _ hdl (Expandir a Pesquisa), c hdl (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: (( a hdl computers can now ) or ((( _ oils compared a new ) or ( j days compared law non ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( a hdl computers can now ) OR ((( _ oils compared a new ) OR ( j days compared law non )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( a hdl computers can now ) or ((( _ oils compared a new ) or ( j days compared law non ))))*.