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 metal » complex mental (Expandir a Pesquisa), complex metallic (Expandir a Pesquisa), complex medical (Expandir a Pesquisa)
carlos nara » carlos lara (Expandir a Pesquisa), carlos nava (Expandir a Pesquisa), carlos jara (Expandir a Pesquisa)
metal ngoc » metal nao (Expandir a Pesquisa), metal nox (Expandir a Pesquisa), metal angola (Expandir a Pesquisa)
comes con » comes can (Expandir a Pesquisa), comunes con (Expandir a Pesquisa), comes down (Expandir a Pesquisa)
con need » con nee (Expandir a Pesquisa), non need (Expandir a Pesquisa), colon need (Expandir a Pesquisa)
7.5 nacl » 3.5 nacl (Expandir a Pesquisa), 0.9 nacl (Expandir a Pesquisa)
l comes » l comps (Expandir a Pesquisa), l coles (Expandir a Pesquisa), l comas (Expandir a Pesquisa)
nacl a » nacl _ (Expandir a Pesquisa), nacl y (Expandir a Pesquisa), nacl e (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 l comes con need ) or ((( 5 methyl complex metal ngoc ) or ( 7.5 nacl a carlos nara ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j l comes con need ) OR ((( 5 methyl complex metal ngoc ) OR ( 7.5 nacl a carlos nara )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j l comes con need ) or ((( 5 methyl complex metal ngoc ) or ( 7.5 nacl a carlos nara ))))*.