Talvez deva tentar algumas variações de ortografia:
methyl complex » metal complex (Expandir a Pesquisa), method complex (Expandir a Pesquisa), methylase complex (Expandir a Pesquisa)
semino carlos » serrano carlos (Expandir a Pesquisa), bacino carlos (Expandir a Pesquisa), emilio carlos (Expandir a Pesquisa)
complex tail » complex trait (Expandir a Pesquisa), complex task (Expandir a Pesquisa), complex thin (Expandir a Pesquisa)
carlos rojek » carlos nojek (Expandir a Pesquisa), carlos rojas (Expandir a Pesquisa), carlos roger (Expandir a Pesquisa)
comps john » copps john (Expandir a Pesquisa), combs john (Expandir a Pesquisa), camps johan (Expandir a Pesquisa)
john neena » jain neena (Expandir a Pesquisa)
tail ngo » tail co (Expandir a Pesquisa), tail non (Expandir a Pesquisa)
l comps » m comps (Expandir a Pesquisa)
3 nacl » _ nacl (Expandir a Pesquisa), m nacl (Expandir a Pesquisa), 3.5 nacl (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 comps john neena ) OR ((( 5 methyl complex tail ngo ) OR ( 3 nacl semino carlos rojek ))))~.
• "As palabras AND, OR e NOT podem gerar pesquisas incorrectas; tente utilizar aspas": "(( j l comps john neena ) OR ((( 5 methyl complex tail ngo ) OR ( 3 nacl semino carlos rojek ))))".
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j l comps john neena ) OR ((( 5 methyl complex tail ngo ) OR ( 3 nacl semino carlos rojek ))))*.