Talvez deva tentar algumas variações de ortografia:
methyl complex » metal complex (Expandir a Pesquisa), method complex (Expandir a Pesquisa), methylase complex (Expandir a Pesquisa)
complex tran » complex trans (Expandir a Pesquisa), complex tehran (Expandir a Pesquisa), complex trait (Expandir a Pesquisa)
bueno carlos » moreno carlos (Expandir a Pesquisa), bacino carlos (Expandir a Pesquisa)
carlos nava » carlos navarro (Expandir a Pesquisa), carlos eslava (Expandir a Pesquisa), carlos zavala (Expandir a Pesquisa)
null bueno » manuel bueno (Expandir a Pesquisa)
core new » score new (Expandir a Pesquisa), care new (Expandir a Pesquisa), more new (Expandir a Pesquisa)
1.9 null » 1.3 null (Expandir a Pesquisa), 1.6 null (Expandir a Pesquisa), 1.8 null (Expandir a Pesquisa)
m cobas » _ cobas (Expandir a Pesquisa), m cobal (Expandir a Pesquisa), m cobos (Expandir a Pesquisa)
ngoc » ngo (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 cobas core new ) or ((( 5 methyl complex tran ngoc ) or ( 1.9 null bueno carlos nava ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j m cobas core new ) OR ((( 5 methyl complex tran ngoc ) OR ( 1.9 null bueno carlos nava )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j m cobas core new ) or ((( 5 methyl complex tran ngoc ) or ( 1.9 null bueno carlos nava ))))*.