Talvez deva tentar algumas variações de ortografia:
metals complex » metal complex (Expandir a Pesquisa), metals complexes (Expandir a Pesquisa), metals coupled (Expandir a Pesquisa)
semino carlos » serrano carlos (Expandir a Pesquisa), bacino carlos (Expandir a Pesquisa), emilio carlos (Expandir a Pesquisa)
carlos kosera » carlos morera (Expandir a Pesquisa), carlos coser (Expandir a Pesquisa), carlos lopera (Expandir a Pesquisa)
complex thi » complex thin (Expandir a Pesquisa), complex third (Expandir a Pesquisa), complex than (Expandir a Pesquisa)
combs john » coombs john (Expandir a Pesquisa), coombes john (Expandir a Pesquisa), hobbs john (Expandir a Pesquisa)
john net » john new (Expandir a Pesquisa), john neetu (Expandir a Pesquisa), john asnet (Expandir a Pesquisa)
5 metals » 5 metal (Expandir a Pesquisa), 5 meters (Expandir a Pesquisa), 5 meta (Expandir a Pesquisa)
e combs » sex combs (Expandir a Pesquisa)
ngoc » ngo (Expandir a Pesquisa)
nacl » natl (Expandir a Pesquisa), nac (Expandir a Pesquisa), nucl (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 e combs john net ) or ((( 5 metals complex thi ngoc ) or ( m nacl semino carlos kosera ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j e combs john net ) OR ((( 5 metals complex thi ngoc ) OR ( m nacl semino carlos kosera )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j e combs john net ) or ((( 5 metals complex thi ngoc ) or ( m nacl semino carlos kosera ))))*.