Talvez deva tentar algumas variações de ortografia:
methods compared » method compared (Expandir a Pesquisa), methods comparison (Expandir a Pesquisa)
compared trinh » compared during (Expandir a Pesquisa), compared using (Expandir a Pesquisa), compare trial (Expandir a Pesquisa)
knopf carlos » prof carlos (Expandir a Pesquisa)
combat nous » combat non (Expandir a Pesquisa), combien nous (Expandir a Pesquisa)
nacl knopf » nacl kno (Expandir a Pesquisa)
carlos naa » carlos nava (Expandir a Pesquisa), carlos nara (Expandir a Pesquisa), carlos noa (Expandir a Pesquisa)
5 methods » 5 methoxy (Expandir a Pesquisa)
nous net » nous et (Expandir a Pesquisa), nous ne (Expandir a Pesquisa), nous n'en (Expandir a Pesquisa)
quoc » quo (Expandir a Pesquisa), quot (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 _ combat nous net ) or ((( 5 methods compared trinh quoc ) or ( 0.9 nacl knopf carlos naa ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j _ combat nous net ) OR ((( 5 methods compared trinh quoc ) OR ( 0.9 nacl knopf carlos naa )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j _ combat nous net ) or ((( 5 methods compared trinh quoc ) or ( 0.9 nacl knopf carlos naa ))))*.