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 than (Expandir a Pesquisa), complex trait (Expandir a Pesquisa)
bueno carlos » moreno carlos (Expandir a Pesquisa), bacino carlos (Expandir a Pesquisa), cano carlos (Expandir a Pesquisa)
carlos nova » carlos novoa (Expandir a Pesquisa), carlos nava (Expandir a Pesquisa), carlos noa (Expandir a Pesquisa)
null bueno » manuel bueno (Expandir a Pesquisa)
cobal act » global act (Expandir a Pesquisa), cobal c (Expandir a Pesquisa)
1.3 null » 1.8 null (Expandir a Pesquisa), 1.9 null (Expandir a Pesquisa), 13 null (Expandir a Pesquisa)
act new » act now (Expandir a Pesquisa), ct new (Expandir a Pesquisa), tract new (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 cobal act new ) or ((( 5 methyl complex tran ngoc ) or ( 1.3 null bueno carlos nova ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j m cobal act new ) OR ((( 5 methyl complex tran ngoc ) OR ( 1.3 null bueno carlos nova )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j m cobal act new ) or ((( 5 methyl complex tran ngoc ) or ( 1.3 null bueno carlos nova ))))*.