Talvez deva tentar algumas variações de ortografia:
maple computer » apple computer (Expandir a Pesquisa), simple computer (Expandir a Pesquisa), mobile computer (Expandir a Pesquisa)
computer based » computer aided (Expandir a Pesquisa)
nation compare » nation prepare (Expandir a Pesquisa), ablation compared (Expandir a Pesquisa), fixation compared (Expandir a Pesquisa)
can newts » can new (Expandir a Pesquisa), can newly (Expandir a Pesquisa)
based now » based snow (Expandir a Pesquisa), based non (Expandir a Pesquisa), based no2 (Expandir a Pesquisa)
compare a » compare _ (Expandir a Pesquisa)
camp can » clamp can (Expandir a Pesquisa), camp ca (Expandir a Pesquisa), amp can (Expandir a Pesquisa)
_ nation » _ national (Expandir a Pesquisa), _ native (Expandir a Pesquisa)
j maple » _ maple (Expandir a Pesquisa)
node » none (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 a camp can newts ) or ((( j maple computer based now ) or ( _ nation compare a node ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j a camp can newts ) OR ((( j maple computer based now ) OR ( _ nation compare a node )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j a camp can newts ) or ((( j maple computer based now ) or ( _ nation compare a node ))))*.