Talvez deva tentar algumas variações de ortografia:
methane cycle » methane cycling (Expandir a Pesquisa), methionine cycle (Expandir a Pesquisa)
semino carlos » serrano carlos (Expandir a Pesquisa), bacino carlos (Expandir a Pesquisa), solano carlos (Expandir a Pesquisa)
cycle three » cycles three (Expandir a Pesquisa), chile three (Expandir a Pesquisa), cycle free (Expandir a Pesquisa)
carlos nora » carlos mora (Expandir a Pesquisa), carlos nara (Expandir a Pesquisa), carlos noa (Expandir a Pesquisa)
o methane » go methane (Expandir a Pesquisa), _ methane (Expandir a Pesquisa), a methane (Expandir a Pesquisa)
three non » three new (Expandir a Pesquisa)
m combs » m coombs (Expandir a Pesquisa), e combs (Expandir a Pesquisa), _ combs (Expandir a Pesquisa)
combs c » combs _ (Expandir a Pesquisa)
c net » c neto (Expandir a Pesquisa), _ net (Expandir a Pesquisa), u net (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 c net ) or ((( o methane cycle three non ) or ( 3.5 nacl semino carlos nora ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j m combs c net ) OR ((( o methane cycle three non ) OR ( 3.5 nacl semino carlos nora )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j m combs c net ) or ((( o methane cycle three non ) or ( 3.5 nacl semino carlos nora ))))*.