Talvez deva tentar algumas variações de ortografia:
computer model » computer modeling (Expandir a Pesquisa), computer modelling (Expandir a Pesquisa)
nacl computer » dal computer (Expandir a Pesquisa), apl computer (Expandir a Pesquisa), call computer (Expandir a Pesquisa)
claims war » claims mar (Expandir a Pesquisa), claims part (Expandir a Pesquisa), claims what (Expandir a Pesquisa)
campa can » camp can (Expandir a Pesquisa), campa juan (Expandir a Pesquisa), campa a (Expandir a Pesquisa)
model now » model new (Expandir a Pesquisa), model non (Expandir a Pesquisa), models know (Expandir a Pesquisa)
al campa » al campo (Expandir a Pesquisa), a campa (Expandir a Pesquisa), al camp (Expandir a Pesquisa)
can near » can never (Expandir a Pesquisa), can new (Expandir a Pesquisa)
a claims » _ claims (Expandir a Pesquisa)
war news » cag news (Expandir a Pesquisa), a news (Expandir a Pesquisa)
3 nacl » _ nacl (Expandir a Pesquisa), m nacl (Expandir a Pesquisa), 3.5 nacl (Expandir a Pesquisa)
j al » j l (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 al campa can near ) or ( j a claims war news ))) or ( 3 nacl computer model now ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( j al campa can near ) OR ( j a claims war news ))) OR ( 3 nacl computer model now )).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( j al campa can near ) or ( j a claims war news ))) or ( 3 nacl computer model now ))*.