Talvez deva tentar algumas variações de ortografia:
method companies » method compared (Expandir a Pesquisa), merged companies (Expandir a Pesquisa), metal companies (Expandir a Pesquisa)
companies using » composites using (Expandir a Pesquisa), complexes using (Expandir a Pesquisa)
carlos nora » carlos mora (Expandir a Pesquisa), carlos nara (Expandir a Pesquisa), carlos noa (Expandir a Pesquisa)
using ngoc » using ngs (Expandir a Pesquisa), sang ngoc (Expandir a Pesquisa), using nacc (Expandir a Pesquisa)
en carlos » leon carlos (Expandir a Pesquisa), jaen carlos (Expandir a Pesquisa), chen carlos (Expandir a Pesquisa)
5 method » 5 methods (Expandir a Pesquisa), 05 method (Expandir a Pesquisa), 15 method (Expandir a Pesquisa)
m combs » m coombs (Expandir a Pesquisa), e combs (Expandir a Pesquisa), _ combs (Expandir a Pesquisa)
colin n » colin a (Expandir a Pesquisa), colin d (Expandir a Pesquisa), colin _ (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 combs colin n ) or ((( 5 method companies using ngoc ) or ( 0.9 nacl en carlos nora ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j m combs colin n ) OR ((( 5 method companies using ngoc ) OR ( 0.9 nacl en carlos nora )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j m combs colin n ) or ((( 5 method companies using ngoc ) or ( 0.9 nacl en carlos nora ))))*.