Talvez deva tentar algumas variações de ortografia:
complex foreign » complex forming (Expandir a Pesquisa), complex forest (Expandir a Pesquisa), complex formation (Expandir a Pesquisa)
metal complex » metal complexes (Expandir a Pesquisa)
foreign ngo » foreign ceo (Expandir a Pesquisa), foreign non (Expandir a Pesquisa), foreign news (Expandir a Pesquisa)
carlos now » carlos noe (Expandir a Pesquisa), carlos noa (Expandir a Pesquisa), carlos novo (Expandir a Pesquisa)
comes con » comes can (Expandir a Pesquisa), comes down (Expandir a Pesquisa), comes joan (Expandir a Pesquisa)
nacl cony » nacl co (Expandir a Pesquisa), nacl co2 (Expandir a Pesquisa), nacl ion (Expandir a Pesquisa)
con need » can need (Expandir a Pesquisa), con nee (Expandir a Pesquisa), non need (Expandir a Pesquisa)
l comes » l comps (Expandir a Pesquisa), l coles (Expandir a Pesquisa), l comas (Expandir a Pesquisa)
5 metal » 5 methyl (Expandir a Pesquisa)
3 nacl » _ nacl (Expandir a Pesquisa), 3.5 nacl (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 l comes con need ) or ((( 5 metal complex foreign ngo ) or ( 3 nacl cony carlos now ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j l comes con need ) OR ((( 5 metal complex foreign ngo ) OR ( 3 nacl cony carlos now )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j l comes con need ) or ((( 5 metal complex foreign ngo ) or ( 3 nacl cony carlos now ))))*.