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 task » complex trait (Expandir a Pesquisa), complex than (Expandir a Pesquisa)
knopf carlos » prof carlos (Expandir a Pesquisa)
carlos rojek » carlos nojek (Expandir a Pesquisa), carlos rojas (Expandir a Pesquisa), carlos roger (Expandir a Pesquisa)
nacl knopf » nacl kno (Expandir a Pesquisa)
gomes con » gomes coe (Expandir a Pesquisa), gomes conde (Expandir a Pesquisa), gomes conor (Expandir a Pesquisa)
task ngoc » task non (Expandir a Pesquisa)
con note » con notas (Expandir a Pesquisa)
3.5 nacl » 0.9 nacl (Expandir a Pesquisa)
l gomes » l gomez (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 gomes con note ) or ((( 5 methyl complex task ngoc ) or ( 3.5 nacl knopf carlos rojek ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j l gomes con note ) OR ((( 5 methyl complex task ngoc ) OR ( 3.5 nacl knopf carlos rojek ))))*.