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 tail » complex trait (Expandir a Pesquisa), complex task (Expandir a Pesquisa), complex thin (Expandir a Pesquisa)
carlos nojek » carlos nunez (Expandir a Pesquisa), carlos nunes (Expandir a Pesquisa), carlos nejar (Expandir a Pesquisa)
nano carlos » cano carlos (Expandir a Pesquisa), nino carlos (Expandir a Pesquisa), nuno carlos (Expandir a Pesquisa)
comes con » comes can (Expandir a Pesquisa), comunes con (Expandir a Pesquisa), comes down (Expandir a Pesquisa)
tail ngoc » tai ngoc (Expandir a Pesquisa), tail non (Expandir a Pesquisa)
nacl nano » nacl kno (Expandir a Pesquisa), nacl nabr (Expandir a Pesquisa)
3.5 nacl » 0.9 nacl (Expandir a Pesquisa), 3 nacl (Expandir a Pesquisa)
l comes » l comps (Expandir a Pesquisa), l coles (Expandir a Pesquisa), l comas (Expandir a Pesquisa)
con noe » con note (Expandir a Pesquisa), con node (Expandir a Pesquisa), con nee (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 comes con noe ) OR ((( 5 methyl complex tail ngoc ) OR ( 3.5 nacl nano carlos nojek ))))~.
• "As palabras AND, OR e NOT podem gerar pesquisas incorrectas; tente utilizar aspas": "(( j l comes con noe ) OR ((( 5 methyl complex tail ngoc ) OR ( 3.5 nacl nano carlos nojek ))))".
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j l comes con noe ) OR ((( 5 methyl complex tail ngoc ) OR ( 3.5 nacl nano carlos nojek ))))*.