Talvez deva tentar algumas variações de ortografia:
metal complex » metal complexes (Expandir a Pesquisa)
company case » company based (Expandir a Pesquisa), company a (Expandir a Pesquisa)
has company » gas company (Expandir a Pesquisa), his company (Expandir a Pesquisa), khaos company (Expandir a Pesquisa)
dan newton » jan newton (Expandir a Pesquisa), jean newton (Expandir a Pesquisa), chan newton (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)
case now » cases now (Expandir a Pesquisa), case non (Expandir a Pesquisa), case new (Expandir a Pesquisa)
5 metal » 5 methyl (Expandir a Pesquisa)
2 has » _ has (Expandir a Pesquisa), 1 has (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.

• Performing a fuzzy search may retrieve terms with similar spellings: (( j al romer dan newton ) or ((( 5 metal complex case now ) or ( 2 has company case now ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j al romer dan newton ) OR ((( 5 metal complex case now ) OR ( 2 has company case now )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j al romer dan newton ) or ((( 5 metal complex case now ) or ( 2 has company case now ))))*.