Talvez deva tentar algumas variações de ortografia:
complex hoang » complex hand (Expandir a Pesquisa), complex housing (Expandir a Pesquisa), complex holding (Expandir a Pesquisa)
metal complex » metal complexes (Expandir a Pesquisa)
nina carlos » nino carlos (Expandir a Pesquisa), pina carlos (Expandir a Pesquisa), nin carlos (Expandir a Pesquisa)
combs john » coombs john (Expandir a Pesquisa), coombes john (Expandir a Pesquisa), hobbs john (Expandir a Pesquisa)
carlos noe » carlos noel (Expandir a Pesquisa), carlos noa (Expandir a Pesquisa), carlos nojek (Expandir a Pesquisa)
john net » john new (Expandir a Pesquisa), john neetu (Expandir a Pesquisa), john asnet (Expandir a Pesquisa)
e combs » sex combs (Expandir a Pesquisa)
5 metal » 5 metil (Expandir a Pesquisa), 5 methyl (Expandir a Pesquisa)
3.5 nac » 3.5 nacl (Expandir a Pesquisa), 7.5 nacl (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 e combs john net ) or ((( 5 metal complex hoang ngoc ) or ( 3.5 nac nina carlos noe ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j e combs john net ) OR ((( 5 metal complex hoang ngoc ) OR ( 3.5 nac nina carlos noe )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j e combs john net ) or ((( 5 metal complex hoang ngoc ) or ( 3.5 nac nina carlos noe ))))*.