Talvez deva tentar algumas variações de ortografia:
methane cobalt » ethane cobalt (Expandir a Pesquisa), methanol cobalt (Expandir a Pesquisa), methane coal (Expandir a Pesquisa)
semino carlos » serrano carlos (Expandir a Pesquisa), bacino carlos (Expandir a Pesquisa), emilio carlos (Expandir a Pesquisa)
cobalt thin » cobalt trial (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)
thin ngoc » thien ngoc (Expandir a Pesquisa), thinh ngoc (Expandir a Pesquisa), thi ngoc (Expandir a Pesquisa)
m coombs » m coombes (Expandir a Pesquisa), g coombs (Expandir a Pesquisa), _ coombs (Expandir a Pesquisa)
coombs c » coombs r (Expandir a Pesquisa), coombs g (Expandir a Pesquisa), coombs j (Expandir a Pesquisa)
3.5 nacl » 0.9 nacl (Expandir a Pesquisa), 3 nacl (Expandir a Pesquisa)
c new » a new (Expandir a Pesquisa), _ new (Expandir a Pesquisa), c neu (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 coombs c new ) or ((( o methane cobalt thin ngoc ) or ( 3.5 nacl semino carlos nora ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j m coombs c new ) OR ((( o methane cobalt thin ngoc ) OR ( 3.5 nacl semino carlos nora )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j m coombs c new ) or ((( o methane cobalt thin ngoc ) or ( 3.5 nacl semino carlos nora ))))*.