Talvez deva tentar algumas variações de ortografia:
beams compared » cams compared (Expandir a Pesquisa), mems compared (Expandir a Pesquisa), areas compared (Expandir a Pesquisa)
computer case » computer based (Expandir a Pesquisa), computer code (Expandir a Pesquisa), computer can (Expandir a Pesquisa)
data compared » data comparing (Expandir a Pesquisa)
nat computer » cat computer (Expandir a Pesquisa), fast computer (Expandir a Pesquisa), icat computer (Expandir a Pesquisa)
compared can » compared a (Expandir a Pesquisa), compared law (Expandir a Pesquisa), companies can (Expandir a Pesquisa)
case now » cases now (Expandir a Pesquisa), case non (Expandir a Pesquisa), case new (Expandir a Pesquisa)
i beams » _ beams (Expandir a Pesquisa), i beam (Expandir a Pesquisa), ion beams (Expandir a Pesquisa)
j data » j datta (Expandir a Pesquisa), j daza (Expandir a Pesquisa), j daka (Expandir a Pesquisa)
j nat » j nart (Expandir a Pesquisa), _ nat (Expandir a Pesquisa), a nat (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: (( j nat computer case now ) or ((( i beams compared can new ) or ( j data compared _ non ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j nat computer case now ) OR ((( i beams compared can new ) OR ( j data compared _ non )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j nat computer case now ) or ((( i beams compared can new ) or ( j data compared _ non ))))*.