Talvez deva tentar algumas variações de ortografia:
methods coupled » method coupled (Expandir a Pesquisa), methods compared (Expandir a Pesquisa), methods course (Expandir a Pesquisa)
coupled thi » coupled thin (Expandir a Pesquisa), coupled thm (Expandir a Pesquisa), coupled twin (Expandir a Pesquisa)
nabr carlos » najar carlos (Expandir a Pesquisa), nader carlos (Expandir a Pesquisa), jair carlos (Expandir a Pesquisa)
carlos now » carlos noa (Expandir a Pesquisa), carlos noe (Expandir a Pesquisa), carlos novo (Expandir a Pesquisa)
combs con » combs colin (Expandir a Pesquisa), combs john (Expandir a Pesquisa), combs cody (Expandir a Pesquisa)
5 methods » 5 methoxy (Expandir a Pesquisa)
nacl nabr » nacl kbr (Expandir a Pesquisa), nacl nano (Expandir a Pesquisa), nacl naoh (Expandir a Pesquisa)
l combs » e combs (Expandir a Pesquisa), _ combs (Expandir a Pesquisa), l comps (Expandir a Pesquisa)
con net » con nee (Expandir a Pesquisa), non net (Expandir a Pesquisa), upon net (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 l combs con net ) or ((( 5 methods coupled thi ngoc ) or ( 3.5 nacl nabr carlos now ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j l combs con net ) OR ((( 5 methods coupled thi ngoc ) OR ( 3.5 nacl nabr carlos now )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j l combs con net ) or ((( 5 methods coupled thi ngoc ) or ( 3.5 nacl nabr carlos now ))))*.