Talvez deva tentar algumas variações de ortografia:
metal complex » metal complexes (Expandir a Pesquisa)
complex pham » complex phase (Expandir a Pesquisa), complex phage (Expandir a Pesquisa), complex pa (Expandir a Pesquisa)
carlos juca » carlos juan (Expandir a Pesquisa), carlos julio (Expandir a Pesquisa)
combs icus » combs locus (Expandir a Pesquisa)
mar carlos » mario carlos (Expandir a Pesquisa), maria carlos (Expandir a Pesquisa), marco carlos (Expandir a Pesquisa)
icus new » virus new (Expandir a Pesquisa), locus new (Expandir a Pesquisa), focus new (Expandir a Pesquisa)
3.5 nacl » 0.9 nacl (Expandir a Pesquisa), 3 nacl (Expandir a Pesquisa)
nacl mar » nacl nabr (Expandir a Pesquisa), nacl meat (Expandir a Pesquisa), nacl para (Expandir a Pesquisa)
l combs » e combs (Expandir a Pesquisa), _ combs (Expandir a Pesquisa), l comps (Expandir a Pesquisa)
5 metal » 5 metil (Expandir a Pesquisa), 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 combs icus new ) OR ((( 5 metal complex pham ngoc ) OR ( 3.5 nacl mar carlos juca ))))~.
• "As palabras AND, OR e NOT podem gerar pesquisas incorrectas; tente utilizar aspas": "(( j l combs icus new ) OR ((( 5 metal complex pham ngoc ) OR ( 3.5 nacl mar carlos juca ))))".
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j l combs icus new ) OR ((( 5 metal complex pham ngoc ) OR ( 3.5 nacl mar carlos juca ))))*.