Talvez deva tentar algumas variações de ortografia:
complex causes » complex case (Expandir a Pesquisa), complex care (Expandir a Pesquisa)
nucl complex » nacl complex (Expandir a Pesquisa), nsl complex (Expandir a Pesquisa), cl complex (Expandir a Pesquisa)
company care » company case (Expandir a Pesquisa), company car (Expandir a Pesquisa), company cars (Expandir a Pesquisa)
sommers jan » sommer jan (Expandir a Pesquisa), somers jan (Expandir a Pesquisa), sommers dan (Expandir a Pesquisa)
oil company » oil companies (Expandir a Pesquisa)
jan newton » jean newton (Expandir a Pesquisa), john newton (Expandir a Pesquisa), n newton (Expandir a Pesquisa)
causes new » causes non (Expandir a Pesquisa)
3 nucl » 3 null (Expandir a Pesquisa)
da oil » dha oil (Expandir a Pesquisa), da oit (Expandir a Pesquisa), da oim (Expandir a Pesquisa)

You can also try:

• Europeana
• Digital Public Library of America
• CORE

Pode obter mais resultados ajustando a pesquisa.

• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j _ sommers jan newton ) OR ((( 3 nucl complex causes new ) OR ( da oil company care a ))))~.
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j _ sommers jan newton ) or ((( 3 nucl complex causes new ) or ( da oil company care a ))))*.