Talvez deva tentar algumas variações de ortografia:
carlos roberto » carlos alberto (Expandir a Pesquisa)
metal complex » metal complexes (Expandir a Pesquisa)
complex tai » complex tail (Expandir a Pesquisa), complex tap (Expandir a Pesquisa), complex ta (Expandir a Pesquisa)
jean carlos » juan carlos (Expandir a Pesquisa)
comes can » homes can (Expandir a Pesquisa), domes can (Expandir a Pesquisa), comes calin (Expandir a Pesquisa)
nacl jean » nacl en (Expandir a Pesquisa), nacl meat (Expandir a Pesquisa)
tai ngoc » thai ngoc (Expandir a Pesquisa), thi ngoc (Expandir a Pesquisa), mai ngoc (Expandir a Pesquisa)
0.9 nacl » 3.5 nacl (Expandir a Pesquisa)
e comes » de comes (Expandir a Pesquisa), e combes (Expandir a Pesquisa), e combs (Expandir a Pesquisa)
can nee » can need (Expandir a Pesquisa), chan nee (Expandir a Pesquisa), can new (Expandir a Pesquisa)
5 metal » 5 methyl (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 comes can nee ) or ((( 5 metal complex tai ngoc ) or ( 0.9 nacl jean carlos roberto ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j e comes can nee ) OR ((( 5 metal complex tai ngoc ) OR ( 0.9 nacl jean carlos roberto )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j e comes can nee ) or ((( 5 metal complex tai ngoc ) or ( 0.9 nacl jean carlos roberto ))))*.