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)
held company » oil company (Expandir a Pesquisa), lncd company (Expandir a Pesquisa), food company (Expandir a Pesquisa)
company case » company based (Expandir a Pesquisa), company a (Expandir a Pesquisa)
summer dan » summers dan (Expandir a Pesquisa), summer day (Expandir a Pesquisa), summer days (Expandir a Pesquisa)
dan newton » jan newton (Expandir a Pesquisa), da newton (Expandir a Pesquisa), jean newton (Expandir a Pesquisa)
causes new » causes non (Expandir a Pesquisa)
case non » cause non (Expandir a Pesquisa), case note (Expandir a Pesquisa), phase non (Expandir a Pesquisa)
3 nucl » 3 null (Expandir a Pesquisa)
l held » l heald (Expandir a Pesquisa), l head (Expandir a Pesquisa), l helm (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 _ summer dan newton ) or ((( 3 nucl complex causes new ) or ( l held company case non ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j _ summer dan newton ) OR ((( 3 nucl complex causes new ) OR ( l held company case non )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j _ summer dan newton ) or ((( 3 nucl complex causes new ) or ( l held company case non ))))*.