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 nocek » carlos nojek (Expandir a Pesquisa), carlos noceda (Expandir a Pesquisa), carlos nick (Expandir a Pesquisa)
nabr carlos » najar carlos (Expandir a Pesquisa), nader carlos (Expandir a Pesquisa), mar 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 nabr » nacl kbr (Expandir a Pesquisa), nacl nano (Expandir a Pesquisa)
con neue » con nee (Expandir a Pesquisa), von neuen (Expandir a Pesquisa), con neuro (Expandir a Pesquisa)
3.5 nacl » 0.9 nacl (Expandir a Pesquisa)
l comes » l comps (Expandir a Pesquisa), l coles (Expandir a Pesquisa), l comas (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 neue ) OR ((( 5 methyl complex tail ngoc ) OR ( 3.5 nacl nabr carlos nocek ))))~.
• "As palabras AND, OR e NOT podem gerar pesquisas incorrectas; tente utilizar aspas": "(( j l comes con neue ) OR ((( 5 methyl complex tail ngoc ) OR ( 3.5 nacl nabr carlos nocek ))))".
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j l comes con neue ) OR ((( 5 methyl complex tail ngoc ) OR ( 3.5 nacl nabr carlos nocek ))))*.