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 than » complex trait (Expandir a Pesquisa)
knopf carlos » prof carlos (Expandir a Pesquisa)
carlos novoa » carlos novo (Expandir a Pesquisa), carlos nova (Expandir a Pesquisa), carlos nava (Expandir a Pesquisa)
combs john » coombs john (Expandir a Pesquisa), coombes john (Expandir a Pesquisa), hobbs john (Expandir a Pesquisa)
nacl knopf » nacl kno (Expandir a Pesquisa)
5 methods » 5 methoxy (Expandir a Pesquisa)
john net » john new (Expandir a Pesquisa), john neetu (Expandir a Pesquisa), john asnet (Expandir a Pesquisa)
7.5 nacl » 3.5 nacl (Expandir a Pesquisa), 0.9 nacl (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 _ combs john net ) or ((( 5 methods complex than non ) or ( 7.5 nacl knopf carlos novoa ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j _ combs john net ) OR ((( 5 methods complex than non ) OR ( 7.5 nacl knopf carlos novoa ))))*.