Talvez deva tentar algumas variações de ortografia:
computer case » computer based (Expandir a Pesquisa), computer code (Expandir a Pesquisa), computer can (Expandir a Pesquisa)
compared case » compared cases (Expandir a Pesquisa), compared can (Expandir a Pesquisa), companies case (Expandir a Pesquisa)
nay computer » navy computer (Expandir a Pesquisa), ray computer (Expandir a Pesquisa), only computer (Expandir a Pesquisa)
ha2 compared » a2 compared (Expandir a Pesquisa), h3n2 compared (Expandir a Pesquisa), 2 compared (Expandir a Pesquisa)
nat compr » la compr (Expandir a Pesquisa)
case netw » case new (Expandir a Pesquisa), case note (Expandir a Pesquisa), case near (Expandir a Pesquisa)
nc net » gc net (Expandir a Pesquisa), mc net (Expandir a Pesquisa), rc net (Expandir a Pesquisa)
e nat » e nata (Expandir a Pesquisa), e nao (Expandir a Pesquisa), e nas (Expandir a Pesquisa)
j nay » j nagy (Expandir a Pesquisa), _ nay (Expandir a Pesquisa)
2 ha2 » 2 has2 (Expandir a Pesquisa), 2 hao2 (Expandir a Pesquisa), 2 has (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: (((( e nat compr nc net ) OR ( j nay computer case netw ))) OR ( 2 ha2 compared case netw ))~.
• "As palabras AND, OR e NOT podem gerar pesquisas incorrectas; tente utilizar aspas": "(((( e nat compr nc net ) OR ( j nay computer case netw ))) OR ( 2 ha2 compared case netw ))".
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( e nat compr nc net ) OR ( j nay computer case netw ))) OR ( 2 ha2 compared case netw ))*.