Talvez deva tentar algumas variações de ortografia:
computer primer » computer crime (Expandir a Pesquisa), computer crimes (Expandir a Pesquisa), computer perimetry (Expandir a Pesquisa)
means compared » meals compared (Expandir a Pesquisa), beans compared (Expandir a Pesquisa), mutans compared (Expandir a Pesquisa)
natl computer » dal computer (Expandir a Pesquisa), al computer (Expandir a Pesquisa), apl computer (Expandir a Pesquisa)
year compared » years compared (Expandir a Pesquisa), pcr compared (Expandir a Pesquisa), mr compared (Expandir a Pesquisa)
compared can » compared law (Expandir a Pesquisa), companies can (Expandir a Pesquisa), compared _ (Expandir a Pesquisa)
compared a » compared _ (Expandir a Pesquisa)
a means » _ means (Expandir a Pesquisa)
e natl » e natal (Expandir a Pesquisa), e nata (Expandir a Pesquisa), _ natl (Expandir a Pesquisa)
c year » 1 year (Expandir a Pesquisa), 2 year (Expandir a Pesquisa), bbc year (Expandir a Pesquisa)
a non » _ non (Expandir a Pesquisa)
note » none (Expandir a Pesquisa), node (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 natl computer primer note ) or ((( a means compared can new ) or ( c year compared a non ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( e natl computer primer note ) OR ((( a means compared can new ) OR ( c year compared a non )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( e natl computer primer note ) or ((( a means compared can new ) or ( c year compared a non ))))*.