Talvez deva tentar algumas variações de ortografia:
computer models » computer model (Expandir a Pesquisa), 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)
models now » models know (Expandir a Pesquisa), models new (Expandir a Pesquisa), modern now (Expandir a Pesquisa)
al campa » al campo (Expandir a Pesquisa), a campa (Expandir a Pesquisa), al camp (Expandir a Pesquisa)
a claims » _ claims (Expandir a Pesquisa)
claims a » claims _ (Expandir a Pesquisa)
campa m » campa a (Expandir a Pesquisa)
m near » nm near (Expandir a Pesquisa), m neary (Expandir a Pesquisa), em near (Expandir a Pesquisa)
a news » wpa news (Expandir a Pesquisa), cua news (Expandir a Pesquisa)
3 nacl » 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 m near ) or ( j a claims a news ))) or ( 3 nacl computer models now ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( j al campa m near ) OR ( j a claims a news ))) OR ( 3 nacl computer models now )).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( j al campa m near ) or ( j a claims a news ))) or ( 3 nacl computer models now ))*.