Talvez deva tentar algumas variações de ortografia:
model computer » models computer (Expandir a Pesquisa), modern computer (Expandir a Pesquisa), models computed (Expandir a Pesquisa)
computer case » computer based (Expandir a Pesquisa), computer code (Expandir a Pesquisa), computer can (Expandir a Pesquisa)
gelb compared » gel compared (Expandir a Pesquisa), gels compared (Expandir a Pesquisa), enb compared (Expandir a Pesquisa)
nets compared » tests compared (Expandir a Pesquisa), units compared (Expandir a Pesquisa), diets compared (Expandir a Pesquisa)
compared can » compared law (Expandir a Pesquisa), companies can (Expandir a Pesquisa), compared _ (Expandir a Pesquisa)
compared a » compared _ (Expandir a Pesquisa)
case now » cases now (Expandir a Pesquisa), case non (Expandir a Pesquisa), case new (Expandir a Pesquisa)
d gelb » d gele (Expandir a Pesquisa), d gel (Expandir a Pesquisa), h gelb (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: (( _ model computer case now ) or ((( d gelb compared can new ) or ( _ nets compared a new ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( _ model computer case now ) OR ((( d gelb compared can new ) OR ( _ nets compared a new )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( _ model computer case now ) or ((( d gelb compared can new ) or ( _ nets compared a new ))))*.