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 tracks » complex traces (Expandir a Pesquisa), complex traits (Expandir a Pesquisa), complex tasks (Expandir a Pesquisa)
tracks ngoc » tracks non (Expandir a Pesquisa), francis ngoc (Expandir a Pesquisa)
nuno carlos » nino carlos (Expandir a Pesquisa), nunes carlos (Expandir a Pesquisa), bueno carlos (Expandir a Pesquisa)
carlos nava » carlos navarro (Expandir a Pesquisa), carlos eslava (Expandir a Pesquisa), carlos zavala (Expandir a Pesquisa)
combs non » combs john (Expandir a Pesquisa), combat non (Expandir a Pesquisa), combs jan (Expandir a Pesquisa)
nuno nuno » nunes nuno (Expandir a Pesquisa), nuno nunes (Expandir a Pesquisa)
3.5 nuno » 3.5 non (Expandir a Pesquisa)
l combs » e combs (Expandir a Pesquisa), _ combs (Expandir a Pesquisa), l comps (Expandir a Pesquisa)
non net » non nest (Expandir a Pesquisa), con net (Expandir a Pesquisa), anion net (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 non net ) or ((( 5 methyl complex tracks ngoc ) or ( 3.5 nuno nuno carlos nava ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j l combs non net ) OR ((( 5 methyl complex tracks ngoc ) OR ( 3.5 nuno nuno carlos nava )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j l combs non net ) or ((( 5 methyl complex tracks ngoc ) or ( 3.5 nuno nuno carlos nava ))))*.