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 tran » complex trans (Expandir a Pesquisa), complex than (Expandir a Pesquisa), complex trait (Expandir a Pesquisa)
enout carlos » einloft carlos (Expandir a Pesquisa), escott carlos (Expandir a Pesquisa), senent carlos (Expandir a Pesquisa)
carlos juca » carlos juan (Expandir a Pesquisa), carlos julio (Expandir a Pesquisa)
bacon neil » deacon neil (Expandir a Pesquisa), bacon new (Expandir a Pesquisa)
c.m bacon » com bacon (Expandir a Pesquisa), c.m bach (Expandir a Pesquisa), ham bacon (Expandir a Pesquisa)
3.5 nacl » 0.9 nacl (Expandir a Pesquisa)
l c.m » l com (Expandir a Pesquisa), l cam (Expandir a Pesquisa), _ c.m (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.

• "As palabras AND, OR e NOT podem gerar pesquisas incorrectas; tente utilizar aspas": "(( j l c.m bacon neil ) OR ((( 5 methyl complex tran ngoc ) OR ( 3.5 nacl enout carlos juca ))))~".
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j l c.m bacon neil ) OR ((( 5 methyl complex tran ngoc ) OR ( 3.5 nacl enout carlos juca ))))*.