Talvez deva tentar algumas variações de ortografia:
methyl complex » metal complex (Expandir a Pesquisa), method complex (Expandir a Pesquisa), methylase complex (Expandir a Pesquisa)
complex tried » complex trial (Expandir a Pesquisa), complex third (Expandir a Pesquisa), complex tree (Expandir a Pesquisa)
casado carlos » casiano carlos (Expandir a Pesquisa), castano carlos (Expandir a Pesquisa), castro carlos (Expandir a Pesquisa)
carlos nodal » carlos vidal (Expandir a Pesquisa), carlos nava (Expandir a Pesquisa), carlos nejar (Expandir a Pesquisa)
tried ngo » trieu ngoa (Expandir a Pesquisa), trieu ngoc (Expandir a Pesquisa), tri ngo (Expandir a Pesquisa)
3.5 nacl » 0.9 nacl (Expandir a Pesquisa), 3 nacl (Expandir a Pesquisa)
l combs » e combs (Expandir a Pesquisa), _ combs (Expandir a Pesquisa), l comps (Expandir a Pesquisa)
combs b » combs _ (Expandir a Pesquisa), combs c (Expandir a Pesquisa)
b neu » 2 neu (Expandir a Pesquisa), c neu (Expandir a Pesquisa), _ neu (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 b neu ) OR ((( 5 methyl complex tried ngo ) OR ( 3.5 nacl casado carlos nodal ))))~.
• "As palabras AND, OR e NOT podem gerar pesquisas incorrectas; tente utilizar aspas": "(( j l combs b neu ) OR ((( 5 methyl complex tried ngo ) OR ( 3.5 nacl casado carlos nodal ))))".
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j l combs b neu ) OR ((( 5 methyl complex tried ngo ) OR ( 3.5 nacl casado carlos nodal ))))*.