Talvez deva tentar algumas variações de ortografia:
computer case » computer based (Expandir a Pesquisa), computer code (Expandir a Pesquisa), computer can (Expandir a Pesquisa)
man computer » can computer (Expandir a Pesquisa), human computer (Expandir a Pesquisa), non computer (Expandir a Pesquisa)
claims mark » claims mar (Expandir a Pesquisa), claims made (Expandir a Pesquisa), claims may (Expandir a Pesquisa)
mark newly » may newly (Expandir a Pesquisa), mark new (Expandir a Pesquisa), mark neal (Expandir a Pesquisa)
natl camp » al camp (Expandir a Pesquisa)
camp can » clamp can (Expandir a Pesquisa), camp ca (Expandir a Pesquisa), amp can (Expandir a Pesquisa)
a claims » _ claims (Expandir a Pesquisa)
case now » cases now (Expandir a Pesquisa), case non (Expandir a Pesquisa), case new (Expandir a Pesquisa)
j natl » _ natl (Expandir a Pesquisa), j nail (Expandir a Pesquisa), j nat (Expandir a Pesquisa)
j man » j mans (Expandir a Pesquisa), j mann (Expandir a Pesquisa), j mana (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 natl camp can new ) or ( j a claims mark newly ))) or ( j man computer case now ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( j natl camp can new ) OR ( j a claims mark newly ))) OR ( j man computer case now )).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( j natl camp can new ) or ( j a claims mark newly ))) or ( j man computer case now ))*.