Talvez deva tentar algumas variações de ortografia:
methods compared » method compared (Expandir a Pesquisa), methods comparison (Expandir a Pesquisa)
compared dinh » compared during (Expandir a Pesquisa), compared using (Expandir a Pesquisa), compared being (Expandir a Pesquisa)
carlos nava » carlos navarro (Expandir a Pesquisa), carlos eslava (Expandir a Pesquisa), carlos zavala (Expandir a Pesquisa)
combs john » coombs john (Expandir a Pesquisa), coombes john (Expandir a Pesquisa), hobbs john (Expandir a Pesquisa)
5 methods » 5 methoxy (Expandir a Pesquisa)
dinh ngoc » bich ngoc (Expandir a Pesquisa), anh ngoc (Expandir a Pesquisa)
john nee » john new (Expandir a Pesquisa), john neena (Expandir a Pesquisa), john neetu (Expandir a Pesquisa)
l carlos » gil carlos (Expandir a Pesquisa)
m combs » m coombs (Expandir a Pesquisa), e combs (Expandir a Pesquisa), _ combs (Expandir a Pesquisa)
nacl l » nacl _ (Expandir a Pesquisa), nacl y (Expandir a Pesquisa), nacl a (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 m combs john nee ) or ((( 5 methods compared dinh ngoc ) or ( 0.9 nacl l carlos nava ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j m combs john nee ) OR ((( 5 methods compared dinh ngoc ) OR ( 0.9 nacl l carlos nava )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j m combs john nee ) or ((( 5 methods compared dinh ngoc ) or ( 0.9 nacl l carlos nava ))))*.