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), emilio carlos (Expandir a Pesquisa)
cycle three » cycles three (Expandir a Pesquisa), chile three (Expandir a Pesquisa), cycle thieves (Expandir a Pesquisa)
carlos nara » carlos lara (Expandir a Pesquisa), carlos nava (Expandir a Pesquisa), carlos jara (Expandir a Pesquisa)
three ngoc » three non (Expandir a Pesquisa), three nac (Expandir a Pesquisa), three neo (Expandir a Pesquisa)
combs con » combs colin (Expandir a Pesquisa), combs john (Expandir a Pesquisa), combs c (Expandir a Pesquisa)
o methane » go methane (Expandir a Pesquisa), _ methane (Expandir a Pesquisa), a methane (Expandir a Pesquisa)
3.5 nacl » 0.9 nacl (Expandir a Pesquisa), 3 nacl (Expandir a Pesquisa)
e combs » sex combs (Expandir a Pesquisa)
con net » con nee (Expandir a Pesquisa), non net (Expandir a Pesquisa), con note (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 e combs con net ) or ((( o methane cycle three ngoc ) or ( 3.5 nacl semino carlos nara ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j e combs con net ) OR ((( o methane cycle three ngoc ) OR ( 3.5 nacl semino carlos nara )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j e combs con net ) or ((( o methane cycle three ngoc ) or ( 3.5 nacl semino carlos nara ))))*.