Talvez deva tentar algumas variações de ortografia:
heap compared » head compared (Expandir a Pesquisa), heat compared (Expandir a Pesquisa), help compared (Expandir a Pesquisa)
hdl compared » gel compared (Expandir a Pesquisa), ml compared (Expandir a Pesquisa), oil compared (Expandir a Pesquisa)
nat computer » cat computer (Expandir a Pesquisa), fast computer (Expandir a Pesquisa), icat computer (Expandir a Pesquisa)
computer can » computers can (Expandir a Pesquisa), computer case (Expandir a Pesquisa), computer a (Expandir a Pesquisa)
can netw » can new (Expandir a Pesquisa), can net (Expandir a Pesquisa), can newts (Expandir a Pesquisa)
j heap » j head (Expandir a Pesquisa)
i hdl » ii hdl (Expandir a Pesquisa), _ hdl (Expandir a Pesquisa), c hdl (Expandir a Pesquisa)
a now » a new (Expandir a Pesquisa), a non (Expandir a Pesquisa), _ now (Expandir a Pesquisa)
_ nat » _ net (Expandir a Pesquisa), _ nad (Expandir a Pesquisa), _ nab (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: (((( i hdl compared a now ) OR ( j heap compared _ newts ))) OR ( _ nat computer can netw ))~.
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( i hdl compared a now ) or ( j heap compared _ newts ))) or ( _ nat computer can netw ))*.