Talvez deva tentar algumas variações de ortografia:
metal complex » metal complexes (Expandir a Pesquisa)
complex tears » complex traits (Expandir a Pesquisa), complex trait (Expandir a Pesquisa), complex than (Expandir a Pesquisa)
coombs jason » coombes jason (Expandir a Pesquisa), toombs jason (Expandir a Pesquisa), cooper jason (Expandir a Pesquisa)
cano carlos » luciano carlos (Expandir a Pesquisa), casiano carlos (Expandir a Pesquisa), bacino carlos (Expandir a Pesquisa)
carlos joel » carlson joel (Expandir a Pesquisa), carlos jose (Expandir a Pesquisa), carlos joao (Expandir a Pesquisa)
nacl cano » nacl nano (Expandir a Pesquisa), nacl caso4 (Expandir a Pesquisa), nacl co (Expandir a Pesquisa)
l coombs » l coombes (Expandir a Pesquisa), g coombs (Expandir a Pesquisa), _ coombs (Expandir a Pesquisa)
7.2 nacl » 7.5 nacl (Expandir a Pesquisa), 0.9 nacl (Expandir a Pesquisa), 3.5 nacl (Expandir a Pesquisa)
jason c » jason _ (Expandir a Pesquisa), jason a (Expandir a Pesquisa)
5 metal » 5 methyl (Expandir a Pesquisa)
ngoc » ngo (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 coombs jason c ) or ((( 5 metal complex tears ngoc ) or ( 7.2 nacl cano carlos joel ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j l coombs jason c ) OR ((( 5 metal complex tears ngoc ) OR ( 7.2 nacl cano carlos joel )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j l coombs jason c ) or ((( 5 metal complex tears ngoc ) or ( 7.2 nacl cano carlos joel ))))*.