Talvez deva tentar algumas variações de ortografia:
methods comparison » method comparison (Expandir a Pesquisa)
comparison trinh » comparison trial (Expandir a Pesquisa), comparison thigh (Expandir a Pesquisa), comparison during (Expandir a Pesquisa)
carlos mora » carlos morales (Expandir a Pesquisa), carlos moreira (Expandir a Pesquisa), carlos moreno (Expandir a Pesquisa)
5 methods » 5 methoxy (Expandir a Pesquisa)
trinh quo » trinh quoc (Expandir a Pesquisa), trinh muoi (Expandir a Pesquisa), trinh quan (Expandir a Pesquisa)
en carlos » leon carlos (Expandir a Pesquisa), jaen carlos (Expandir a Pesquisa), chen carlos (Expandir a Pesquisa)
m toomes » m toomey (Expandir a Pesquisa), m toms (Expandir a Pesquisa), m tomas (Expandir a Pesquisa)
toomes c » toomey _ (Expandir a Pesquisa), toombs a (Expandir a Pesquisa), toomey k (Expandir a Pesquisa)
c notes » pc notes (Expandir a Pesquisa), _ notes (Expandir a Pesquisa), c nones (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 m toomes c notes ) or ((( 5 methods comparison trinh quo ) or ( 0.9 nacl en carlos mora ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j m toomes c notes ) OR ((( 5 methods comparison trinh quo ) OR ( 0.9 nacl en carlos mora )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j m toomes c notes ) or ((( 5 methods comparison trinh quo ) or ( 0.9 nacl en carlos mora ))))*.