Talvez deva tentar algumas variações de ortografia:
complex derived » complexes derived (Expandir a Pesquisa), compound derived (Expandir a Pesquisa)
carlos navarro » carmen navarro (Expandir a Pesquisa)
abril carlos » cabral carlos (Expandir a Pesquisa), abreu carlos (Expandir a Pesquisa), aracil carlos (Expandir a Pesquisa)
mec complex » sec complex (Expandir a Pesquisa), c complex (Expandir a Pesquisa), bc complex (Expandir a Pesquisa)
derived ngf » derived n (Expandir a Pesquisa), derived nk (Expandir a Pesquisa), derived ni (Expandir a Pesquisa)
combs upon » limbs upon (Expandir a Pesquisa)
upon net » upon neo (Expandir a Pesquisa), upon new (Expandir a Pesquisa), upon near (Expandir a Pesquisa)
l combs » e combs (Expandir a Pesquisa), _ combs (Expandir a Pesquisa), l comps (Expandir a Pesquisa)
5 mec » _ mec (Expandir a Pesquisa), 5 meo (Expandir a Pesquisa), 5 mev (Expandir a Pesquisa)
nacl » natl (Expandir a Pesquisa), nac (Expandir a Pesquisa), nucl (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 upon net ) or ((( 5 mec complex derived ngf ) or ( 3.5 nacl abril carlos navarro ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j l combs upon net ) OR ((( 5 mec complex derived ngf ) OR ( 3.5 nacl abril carlos navarro )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j l combs upon net ) or ((( 5 mec complex derived ngf ) or ( 3.5 nacl abril carlos navarro ))))*.