Talvez deva tentar algumas variações de ortografia:
methods complex » methods coupled (Expandir a Pesquisa), methods compared (Expandir a Pesquisa), methods computer (Expandir a Pesquisa)
complex giao » complex geo (Expandir a Pesquisa), complex give (Expandir a Pesquisa), complex ga (Expandir a Pesquisa)
nano carlos » cano carlos (Expandir a Pesquisa), nino carlos (Expandir a Pesquisa), nuno carlos (Expandir a Pesquisa)
carlos nora » carlos mora (Expandir a Pesquisa), carlos nara (Expandir a Pesquisa), carlos noa (Expandir a Pesquisa)
5 methods » 5 methoxy (Expandir a Pesquisa)
giao ngoc » giang ngoc (Expandir a Pesquisa), bao ngoc (Expandir a Pesquisa), cao ngoc (Expandir a Pesquisa)
nacl nano » nacl kno (Expandir a Pesquisa), nacl nabr (Expandir a Pesquisa)
l combs » e combs (Expandir a Pesquisa), _ combs (Expandir a Pesquisa), l comps (Expandir a Pesquisa)
colin _ » colin a (Expandir a Pesquisa), colin d (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 colin _ ) or ((( 5 methods complex giao ngoc ) or ( 0.9 nacl nano carlos nora ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j l combs colin _ ) OR ((( 5 methods complex giao ngoc ) OR ( 0.9 nacl nano carlos nora )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j l combs colin _ ) or ((( 5 methods complex giao ngoc ) or ( 0.9 nacl nano carlos nora ))))*.