Talvez deva tentar algumas variações de ortografia:
computers can » computers a (Expandir a Pesquisa), computers _ (Expandir a Pesquisa)
al computers » al computer (Expandir a Pesquisa), a computers (Expandir a Pesquisa), can computers (Expandir a Pesquisa)
romer dan » romer a (Expandir a Pesquisa), romer daniel (Expandir a Pesquisa)
al romer » al romero (Expandir a Pesquisa), paul romer (Expandir a Pesquisa), axel romer (Expandir a Pesquisa)
camp can » clamp can (Expandir a Pesquisa), camp ca (Expandir a Pesquisa), amp can (Expandir a Pesquisa)
can netw » can new (Expandir a Pesquisa), can net (Expandir a Pesquisa), can newts (Expandir a Pesquisa)
dan net » dan neal (Expandir a Pesquisa)
al camp » al campo (Expandir a Pesquisa), al campa (Expandir a Pesquisa), al campus (Expandir a Pesquisa)
can now » can non (Expandir a Pesquisa), can new (Expandir a Pesquisa), can ngoc (Expandir a Pesquisa)
j al » j a (Expandir a Pesquisa), j l (Expandir a Pesquisa)

You can also try:

• Europeana
• Digital Public Library of America
• CORE

Pode obter mais resultados ajustando a pesquisa.

• Se retirar as aspas poderá fazer uma pesquisa mais abragente: (((( j al romer dan net ) or ( j al camp can netw ))) or ( j al computers can now )).